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50  <h1>Source code for sas.data_util.formatnum</h1><div class="highlight"><pre>
51<span class="c"># This program is public domain</span>
52<span class="c"># Author: Paul Kienzle</span>
53<span class="sd">&quot;&quot;&quot;</span>
54<span class="sd">Format values and uncertainties nicely for printing.</span>
55
56<span class="sd">:func:`format_uncertainty_pm`(v,err) produces the expanded format v +/- err.</span>
57
58<span class="sd">:func:`format_uncertainty_compact`(v,err) produces the compact format v(##),</span>
59<span class="sd">where the number in parenthesis is the uncertainty in the last two digits of v.</span>
60
61<span class="sd">:func:`format_uncertainty`(v,err) uses the compact format by default, but this</span>
62<span class="sd">can be changed to use the expanded +/- format by setting </span>
63<span class="sd">format_uncertainty.compact to False.</span>
64<span class="sd">    </span>
65<span class="sd">The formatted string uses only the number of digits warranted by</span>
66<span class="sd">the uncertainty in the measurement.</span>
67
68<span class="sd">If the uncertainty is 0 or not otherwise provided, the simple</span>
69<span class="sd">%g floating point format option is used.</span>
70
71<span class="sd">Infinite and indefinite numbers are represented as inf and NaN.</span>
72
73<span class="sd">Example::</span>
74
75<span class="sd">    &gt;&gt;&gt; v,dv = 757.2356,0.01032</span>
76<span class="sd">    &gt;&gt;&gt; print format_uncertainty_pm(v,dv)</span>
77<span class="sd">    757.236 +/- 0.010</span>
78<span class="sd">    &gt;&gt;&gt; print format_uncertainty_compact(v,dv)</span>
79<span class="sd">    757.236(10)</span>
80<span class="sd">    &gt;&gt;&gt; print format_uncertainty(v,dv)</span>
81<span class="sd">    757.236(10)</span>
82<span class="sd">    &gt;&gt;&gt; format_uncertainty.compact = False</span>
83<span class="sd">    &gt;&gt;&gt; print format_uncertainty(v,dv)</span>
84<span class="sd">    757.236 +/- 0.010</span>
85
86<span class="sd">UncertaintyFormatter() returns a private formatter with its own</span>
87<span class="sd">formatter.compact flag.</span>
88<span class="sd">&quot;&quot;&quot;</span>
89<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">division</span>
90
91<span class="kn">import</span> <span class="nn">math</span>
92<span class="kn">import</span> <span class="nn">numpy</span>
93<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;format_uncertainty&#39;</span><span class="p">,</span> <span class="s">&#39;format_uncertainty_pm&#39;</span><span class="p">,</span>
94           <span class="s">&#39;format_uncertainty_compact&#39;</span><span class="p">]</span>
95
96<span class="c"># Coordinating scales across a set of numbers is not supported.  For easy</span>
97<span class="c"># comparison a set of numbers should be shown in the same scale.  One could</span>
98<span class="c"># force this from the outside by adding scale parameter (either 10**n, n, or</span>
99<span class="c"># a string representing the desired SI prefix) and having a separate routine</span>
100<span class="c"># which computes the scale given a set of values.</span>
101
102<span class="c"># Coordinating scales with units offers its own problems.  Again, the user</span>
103<span class="c"># may want to force particular units.  This can be done by outside of the</span>
104<span class="c"># formatting routines by scaling the numbers to the appropriate units then</span>
105<span class="c"># forcing them to print with scale 10**0.  If this is a common operation,</span>
106<span class="c"># however, it may want to happen inside.</span>
107
108<span class="c"># The value e&lt;n&gt; is currently formatted into the number.  Alternatively this</span>
109<span class="c"># scale factor could be returned so that the user can choose the appropriate</span>
110<span class="c"># SI prefix when printing the units.  This gets tricky when talking about</span>
111<span class="c"># composite units such as 2.3e-3 m**2 -&gt; 2300 mm**2, and with volumes</span>
112<span class="c"># such as 1 g/cm**3 -&gt; 1 kg/L.</span>
113
114
115<div class="viewcode-block" id="format_uncertainty_pm"><a class="viewcode-back" href="../../../dev/api/sas.data_util.html#sas.data_util.formatnum.format_uncertainty_pm">[docs]</a><span class="k">def</span> <span class="nf">format_uncertainty_pm</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">):</span>
116    <span class="sd">&quot;&quot;&quot;</span>
117<span class="sd">    Given *value* v and *uncertainty* dv, return a string v +/- dv.</span>
118<span class="sd">    &quot;&quot;&quot;</span>
119    <span class="k">return</span> <span class="n">_format_uncertainty</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">,</span> <span class="n">compact</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
120
121</div>
122<div class="viewcode-block" id="format_uncertainty_compact"><a class="viewcode-back" href="../../../dev/api/sas.data_util.html#sas.data_util.formatnum.format_uncertainty_compact">[docs]</a><span class="k">def</span> <span class="nf">format_uncertainty_compact</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">):</span>
123    <span class="sd">&quot;&quot;&quot;</span>
124<span class="sd">    Given *value* v and *uncertainty* dv, return the compact</span>
125<span class="sd">    representation v(##), where ## are the first two digits of</span>
126<span class="sd">    the uncertainty.</span>
127<span class="sd">    &quot;&quot;&quot;</span>
128    <span class="k">return</span> <span class="n">_format_uncertainty</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">,</span> <span class="n">compact</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
129
130</div>
131<span class="k">class</span> <span class="nc">UncertaintyFormatter</span><span class="p">:</span>
132    <span class="sd">&quot;&quot;&quot;</span>
133<span class="sd">    Value and uncertainty formatter.</span>
134
135<span class="sd">    The *formatter* instance will use either the expanded v +/- dv form</span>
136<span class="sd">    or the compact v(##) form depending on whether *formatter.compact* is</span>
137<span class="sd">    True or False.  The default is True.</span>
138<span class="sd">    &quot;&quot;&quot;</span>
139    <span class="n">compact</span> <span class="o">=</span> <span class="bp">True</span>
140   
141    <span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">):</span>
142        <span class="sd">&quot;&quot;&quot;</span>
143<span class="sd">        Given *value* and *uncertainty*, return a string representation.</span>
144<span class="sd">        &quot;&quot;&quot;</span>
145        <span class="k">return</span> <span class="n">_format_uncertainty</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">compact</span><span class="p">)</span>
146<span class="n">format_uncertainty</span> <span class="o">=</span> <span class="n">UncertaintyFormatter</span><span class="p">()</span>
147
148
149<span class="k">def</span> <span class="nf">_format_uncertainty</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">uncertainty</span><span class="p">,</span> <span class="n">compact</span><span class="p">):</span>
150    <span class="sd">&quot;&quot;&quot;</span>
151<span class="sd">    Implementation of both the compact and the +/- formats.</span>
152<span class="sd">    &quot;&quot;&quot;</span>
153    <span class="c"># Handle indefinite value</span>
154    <span class="k">if</span> <span class="n">numpy</span><span class="o">.</span><span class="n">isinf</span><span class="p">(</span><span class="n">value</span><span class="p">):</span>
155        <span class="k">return</span> <span class="s">&quot;inf&quot;</span> <span class="k">if</span> <span class="n">value</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="k">else</span> <span class="s">&quot;-inf&quot;</span>
156    <span class="k">if</span> <span class="n">numpy</span><span class="o">.</span><span class="n">isnan</span><span class="p">(</span><span class="n">value</span><span class="p">):</span>
157        <span class="k">return</span> <span class="s">&quot;NaN&quot;</span>
158
159    <span class="c"># Handle indefinite uncertainty</span>
160    <span class="k">if</span> <span class="n">uncertainty</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">or</span> <span class="n">uncertainty</span> <span class="o">&lt;=</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">numpy</span><span class="o">.</span><span class="n">isnan</span><span class="p">(</span><span class="n">uncertainty</span><span class="p">):</span>
161        <span class="k">return</span> <span class="s">&quot;</span><span class="si">%g</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">value</span>
162    <span class="k">if</span> <span class="n">numpy</span><span class="o">.</span><span class="n">isinf</span><span class="p">(</span><span class="n">uncertainty</span><span class="p">):</span>
163        <span class="k">if</span> <span class="n">compact</span><span class="p">:</span>
164            <span class="k">return</span> <span class="s">&quot;</span><span class="si">%.2g</span><span class="s">(inf)&quot;</span> <span class="o">%</span> <span class="n">value</span>
165        <span class="k">else</span><span class="p">:</span>
166            <span class="k">return</span> <span class="s">&quot;</span><span class="si">%.2g</span><span class="s"> +/- inf&quot;</span> <span class="o">%</span> <span class="n">value</span>
167
168    <span class="c"># Handle zero and negative values</span>
169    <span class="n">sign</span> <span class="o">=</span> <span class="s">&quot;-&quot;</span> <span class="k">if</span> <span class="n">value</span> <span class="o">&lt;</span> <span class="mi">0</span> <span class="k">else</span> <span class="s">&quot;&quot;</span>
170    <span class="n">value</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
171
172    <span class="c"># Determine scale of value and error</span>
173    <span class="n">err_place</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">log10</span><span class="p">(</span><span class="n">uncertainty</span><span class="p">)))</span>
174    <span class="k">if</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
175        <span class="n">val_place</span> <span class="o">=</span> <span class="n">err_place</span> <span class="o">-</span> <span class="mi">1</span>
176    <span class="k">else</span><span class="p">:</span>
177        <span class="n">val_place</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">log10</span><span class="p">(</span><span class="n">value</span><span class="p">)))</span>
178
179    <span class="k">if</span> <span class="n">err_place</span> <span class="o">&gt;</span> <span class="n">val_place</span><span class="p">:</span>
180        <span class="c"># Degenerate case: error bigger than value</span>
181        <span class="c"># The mantissa is 0.#(##)e#, 0.0#(##)e# or 0.00#(##)e#</span>
182        <span class="n">val_place</span> <span class="o">=</span> <span class="n">err_place</span> <span class="o">+</span> <span class="mi">2</span>
183    <span class="k">elif</span> <span class="n">err_place</span> <span class="o">==</span> <span class="n">val_place</span><span class="p">:</span>
184        <span class="c"># Degenerate case: error and value the same order of magnitude</span>
185        <span class="c"># The value is ##(##)e#, #.#(##)e# or 0.##(##)e#</span>
186        <span class="n">val_place</span> <span class="o">=</span> <span class="n">err_place</span> <span class="o">+</span> <span class="mi">1</span>
187    <span class="k">elif</span> <span class="n">err_place</span> <span class="o">&lt;=</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">val_place</span> <span class="o">&gt;=</span> <span class="o">-</span><span class="mi">3</span><span class="p">:</span>
188        <span class="c"># Normal case: nice numbers and errors</span>
189        <span class="c"># The value is ###.###(##)</span>
190        <span class="n">val_place</span> <span class="o">=</span> <span class="mi">0</span>
191    <span class="k">else</span><span class="p">:</span>
192        <span class="c"># Extreme cases: zeros before value or after error</span>
193        <span class="c"># The value is ###.###(##)e#, ##.####(##)e# or #.#####(##)e#</span>
194        <span class="k">pass</span>
195   
196    <span class="c"># Force engineering notation, with exponent a multiple of 3</span>
197    <span class="n">val_place</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">val_place</span> <span class="o">/</span> <span class="mf">3.</span><span class="p">))</span> <span class="o">*</span> <span class="mi">3</span>
198
199    <span class="c"># Format the result</span>
200    <span class="n">digits_after_decimal</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">(</span><span class="n">val_place</span> <span class="o">-</span> <span class="n">err_place</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
201    <span class="n">val_str</span> <span class="o">=</span> <span class="s">&quot;</span><span class="si">%.*f</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">digits_after_decimal</span><span class="p">,</span> <span class="n">value</span> <span class="o">/</span> <span class="mf">10.</span><span class="o">**</span><span class="n">val_place</span><span class="p">)</span>
202    <span class="n">exp_str</span> <span class="o">=</span> <span class="s">&quot;e</span><span class="si">%d</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">val_place</span> <span class="k">if</span> <span class="n">val_place</span> <span class="o">!=</span> <span class="mi">0</span> <span class="k">else</span> <span class="s">&quot;&quot;</span>
203    <span class="k">if</span> <span class="n">compact</span><span class="p">:</span>
204        <span class="n">err_str</span> <span class="o">=</span> <span class="s">&quot;(</span><span class="si">%2d</span><span class="s">)&quot;</span> <span class="o">%</span> <span class="nb">int</span><span class="p">(</span><span class="n">uncertainty</span> <span class="o">/</span> <span class="mf">10.</span><span class="o">**</span><span class="p">(</span><span class="n">err_place</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="mf">0.5</span><span class="p">)</span>
205        <span class="n">result</span> <span class="o">=</span> <span class="s">&quot;&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">((</span><span class="n">sign</span><span class="p">,</span> <span class="n">val_str</span><span class="p">,</span> <span class="n">err_str</span><span class="p">,</span> <span class="n">exp_str</span><span class="p">))</span>
206    <span class="k">else</span><span class="p">:</span>
207        <span class="n">err_str</span> <span class="o">=</span> <span class="s">&quot;</span><span class="si">%.*f</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">digits_after_decimal</span><span class="p">,</span> <span class="n">uncertainty</span> <span class="o">/</span> <span class="mf">10.</span><span class="o">**</span><span class="n">val_place</span><span class="p">)</span>
208        <span class="n">result</span> <span class="o">=</span> <span class="s">&quot;&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">((</span><span class="n">sign</span><span class="p">,</span> <span class="n">val_str</span><span class="p">,</span> <span class="n">exp_str</span> <span class="o">+</span> <span class="s">&quot; +/- &quot;</span><span class="p">,</span> <span class="n">err_str</span><span class="p">,</span> <span class="n">exp_str</span><span class="p">))</span>
209    <span class="k">return</span> <span class="n">result</span>
210
211
212<span class="k">def</span> <span class="nf">test_compact</span><span class="p">():</span>
213    <span class="c"># Oops... renamed function after writing tests</span>
214    <span class="n">value_str</span> <span class="o">=</span> <span class="n">format_uncertainty_compact</span>
215
216    <span class="c"># val_place &gt; err_place</span>
217    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">766000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24(77)e6&quot;</span>
218    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123567.</span><span class="p">,</span><span class="mi">76600</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124(77)e3&quot;</span>
219    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mi">7660</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4(77)e3&quot;</span>
220    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24(77)e3&quot;</span>
221    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="mf">76.6</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124(77)&quot;</span>
222    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="mf">7.66</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4(77)&quot;</span>
223    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">.</span><span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24(77)&quot;</span>
224    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.124(77)&quot;</span>
225    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0124(77)&quot;</span>
226    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00124(77)&quot;</span>
227    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124(77)e-6&quot;</span>
228    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4(77)e-6&quot;</span>
229    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24(77)e-6&quot;</span>
230    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124(77)e-9&quot;</span>
231    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.236(77)e-6&quot;</span>
232    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.357(77)e-6&quot;</span>
233    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.567(77)e-6&quot;</span>
234    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00123567(77)&quot;</span>
235    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0123567(77)&quot;</span>
236    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.123567(77)&quot;</span>
237    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">.</span><span class="mo">000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.23567(77)&quot;</span>
238    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="o">.</span><span class="mo">00766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.3567(77)&quot;</span>
239    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.567(76)&quot;</span>
240    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1235.67(76)&quot;</span>
241    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12356.7(76)&quot;</span>
242    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123567(76)&quot;</span>
243    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.23567(76)e6&quot;</span>
244    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.35670(76)e6&quot;</span>
245    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567000</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.56700(76)e6&quot;</span>
246    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567000</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.5670(76)e6&quot;</span>
247    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670000</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.235670(76)e9&quot;</span>
248
249    <span class="c"># val_place == err_place</span>
250    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12(76)e6&quot;</span>
251    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12(76)e3&quot;</span>
252    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2(76)e3&quot;</span>
253    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12(76)e3&quot;</span>
254    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12(76)&quot;</span>
255    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2(76)&quot;</span>
256    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12(76)&quot;</span>
257    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12(76)e-3&quot;</span>
258    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2(76)e-3&quot;</span>
259    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12(76)e-3&quot;</span>
260
261    <span class="c"># val_place == err_place-1</span>
262    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1(76)e6&quot;</span>
263    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01(76)e6&quot;</span>
264    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001(76)e6&quot;</span>
265    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1(76)e3&quot;</span>
266    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01(76)e3&quot;</span>
267    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001(76)e3&quot;</span>
268    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1(76)&quot;</span>
269    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01(76)&quot;</span>
270    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001(76)&quot;</span>
271    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1(76)e-3&quot;</span>
272
273    <span class="c"># val_place == err_place-2</span>
274    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span><span class="mi">7640000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e9&quot;</span>
275    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">764000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e9&quot;</span>
276    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">76400000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e9&quot;</span>
277    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e6&quot;</span>
278    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e6&quot;</span>
279    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e6&quot;</span>
280    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e3&quot;</span>
281    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e3&quot;</span>
282    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.1</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e3&quot;</span>
283    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.01</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)&quot;</span>
284    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)&quot;</span>
285    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)&quot;</span>
286    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.00001</span><span class="p">,</span><span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e-3&quot;</span>
287
288    <span class="c"># val_place == err_place-3</span>
289    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span><span class="mi">76400000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e12&quot;</span>
290    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">7640000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e9&quot;</span>
291    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">764000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e9&quot;</span>
292    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356</span><span class="p">,</span><span class="mi">76400000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e9&quot;</span>
293    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e6&quot;</span>
294    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e6&quot;</span>
295    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e6&quot;</span>
296    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e3&quot;</span>
297    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.1</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e3&quot;</span>
298    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.01</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e3&quot;</span>
299    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.001</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)&quot;</span>
300    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)&quot;</span>
301    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.00001</span><span class="p">,</span><span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)&quot;</span>
302    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.000001</span><span class="p">,</span><span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e-3&quot;</span>
303
304    <span class="c"># Zero values</span>
305    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e6&quot;</span>
306    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e6&quot;</span>
307    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>  <span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e6&quot;</span>
308    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>   <span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e3&quot;</span>
309    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>    <span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e3&quot;</span>
310    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>     <span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e3&quot;</span>
311    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)&quot;</span>
312    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)&quot;</span>
313    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)&quot;</span>
314    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0(76)e-3&quot;</span>
315    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00(76)e-3&quot;</span>
316    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.0000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000(76)e-3&quot;</span>
317
318    <span class="c"># negative values</span>
319    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">765000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.24(77)e6&quot;</span>
320    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">.</span><span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.24(77)&quot;</span>
321    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-.</span><span class="mo">00000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.236(77)e-6&quot;</span>
322    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">12356.7</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-12356.7(76)&quot;</span>
323    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.12(76)e3&quot;</span>
324    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.001(76)e6&quot;</span>
325    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.1(76)e-3&quot;</span>
326    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">12356</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.0(76)e6&quot;</span>
327    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">12</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.000(76)e6&quot;</span>
328    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.00(76)&quot;</span>
329
330    <span class="c"># non-finite values</span>
331    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-inf&quot;</span>
332    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;inf&quot;</span>
333    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">NaN</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;NaN&quot;</span>
334   
335    <span class="c"># bad or missing uncertainty</span>
336    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="n">numpy</span><span class="o">.</span><span class="n">NaN</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
337    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">-</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
338    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">-</span><span class="mf">0.1</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
339    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="mi">0</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
340    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
341    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.2(inf)&quot;</span>
342
343<span class="k">def</span> <span class="nf">test_pm</span><span class="p">():</span>
344    <span class="c"># Oops... renamed function after writing tests</span>
345    <span class="n">value_str</span> <span class="o">=</span> <span class="n">format_uncertainty_pm</span>
346
347    <span class="c"># val_place &gt; err_place</span>
348    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">766000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24e6 +/- 0.77e6&quot;</span>
349    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123567.</span><span class="p">,</span> <span class="mi">76600</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124e3 +/- 77e3&quot;</span>
350    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span>  <span class="mi">7660</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4e3 +/- 7.7e3&quot;</span>
351    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span>   <span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24e3 +/- 0.77e3&quot;</span>
352    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span>    <span class="mf">76.6</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124 +/- 77&quot;</span>
353    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span>     <span class="mf">7.66</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4 +/- 7.7&quot;</span>
354    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span>      <span class="o">.</span><span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24 +/- 0.77&quot;</span>
355    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span>      <span class="o">.</span><span class="mo">0766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.124 +/- 0.077&quot;</span>
356    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span>     <span class="o">.</span><span class="mo">00766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0124 +/- 0.0077&quot;</span>
357    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span>    <span class="o">.</span><span class="mo">000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00124 +/- 0.00077&quot;</span>
358    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span>   <span class="o">.</span><span class="mo">0000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124e-6 +/- 77e-6&quot;</span>
359    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0000123567</span><span class="p">,</span>  <span class="o">.</span><span class="mo">00000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.4e-6 +/- 7.7e-6&quot;</span>
360    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00000123567</span><span class="p">,</span> <span class="o">.</span><span class="mo">000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.24e-6 +/- 0.77e-6&quot;</span>
361    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;124e-9 +/- 77e-9&quot;</span>
362    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00000123567</span><span class="p">,</span> <span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.236e-6 +/- 0.077e-6&quot;</span>
363    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0000123567</span><span class="p">,</span>  <span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.357e-6 +/- 0.077e-6&quot;</span>
364    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span>   <span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.567e-6 +/- 0.077e-6&quot;</span>
365    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span>    <span class="o">.</span><span class="mo">000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00123567 +/- 0.00000077&quot;</span>
366    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span>     <span class="o">.</span><span class="mo">00000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0123567 +/- 0.0000077&quot;</span>
367    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span>      <span class="o">.</span><span class="mo">0000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.123567 +/- 0.000077&quot;</span>
368    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span>      <span class="o">.</span><span class="mo">000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.23567 +/- 0.00077&quot;</span>
369    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span>      <span class="o">.</span><span class="mo">00766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.3567 +/- 0.0077&quot;</span>
370    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span>      <span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.567 +/- 0.076&quot;</span>
371    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span>      <span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1235.67 +/- 0.76&quot;</span>
372    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span>     <span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12356.7 +/- 7.6&quot;</span>
373    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span>     <span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123567 +/- 76&quot;</span>
374    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span>   <span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.23567e6 +/- 0.00076e6&quot;</span>
375    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span>  <span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12.35670e6 +/- 0.00076e6&quot;</span>
376    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567000</span><span class="p">,</span> <span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.56700e6 +/- 0.00076e6&quot;</span>
377    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567000</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;123.5670e6 +/- 0.0076e6&quot;</span>
378    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670000</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.235670e9 +/- 0.000076e9&quot;</span>
379
380    <span class="c"># val_place == err_place</span>
381    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12e6 +/- 0.76e6&quot;</span>
382    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12e3 +/- 76e3&quot;</span>
383    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2e3 +/- 7.6e3&quot;</span>
384    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12e3 +/- 0.76e3&quot;</span>
385    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12 +/- 76&quot;</span>
386    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2 +/- 7.6&quot;</span>
387    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12 +/- 0.76&quot;</span>
388    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;12e-3 +/- 76e-3&quot;</span>
389    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;1.2e-3 +/- 7.6e-3&quot;</span>
390    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.12e-3 +/- 0.76e-3&quot;</span>
391
392    <span class="c"># val_place == err_place-1</span>
393    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1e6 +/- 7.6e6&quot;</span>
394    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12356.7</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01e6 +/- 0.76e6&quot;</span>
395    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001e6 +/- 0.076e6&quot;</span>
396    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1e3 +/- 7.6e3&quot;</span>
397    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">12.3567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01e3 +/- 0.76e3&quot;</span>
398    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">1.23567</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001e3 +/- 0.076e3&quot;</span>
399    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mi">123567</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1 +/- 7.6&quot;</span>
400    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">0123567</span><span class="p">,</span><span class="o">.</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.01 +/- 0.76&quot;</span>
401    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">00123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.001 +/- 0.076&quot;</span>
402    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.1e-3 +/- 7.6e-3&quot;</span>
403
404    <span class="c"># val_place == err_place-2</span>
405    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span><span class="mi">7640000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e9 +/- 7.6e9&quot;</span>
406    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">764000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e9 +/- 0.76e9&quot;</span>
407    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">76400000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e9 +/- 0.076e9&quot;</span>
408    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e6 +/- 7.6e6&quot;</span>
409    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e6 +/- 0.76e6&quot;</span>
410    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e6 +/- 0.076e6&quot;</span>
411    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e3 +/- 7.6e3&quot;</span>
412    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e3 +/- 0.76e3&quot;</span>
413    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.1</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e3 +/- 0.076e3&quot;</span>
414    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.01</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0 +/- 7.6&quot;</span>
415    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00 +/- 0.76&quot;</span>
416    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000 +/- 0.076&quot;</span>
417    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.00001</span><span class="p">,</span><span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e-3 +/- 7.6e-3&quot;</span>
418
419    <span class="c"># val_place == err_place-3</span>
420    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356700</span><span class="p">,</span><span class="mi">76400000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e12 +/- 0.076e12&quot;</span>
421    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">7640000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e9 +/- 7.6e9&quot;</span>
422    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123567</span><span class="p">,</span><span class="mi">764000000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e9 +/- 0.76e9&quot;</span>
423    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12356</span><span class="p">,</span><span class="mi">76400000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e9 +/- 0.076e9&quot;</span>
424    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1235</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e6 +/- 7.6e6&quot;</span>
425    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">123</span><span class="p">,</span><span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e6 +/- 0.76e6&quot;</span>
426    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e6 +/- 0.076e6&quot;</span>
427    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e3 +/- 7.6e3&quot;</span>
428    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.1</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e3 +/- 0.76e3&quot;</span>
429    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.01</span><span class="p">,</span><span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e3 +/- 0.076e3&quot;</span>
430    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.001</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0 +/- 7.6&quot;</span>
431    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00 +/- 0.76&quot;</span>
432    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.00001</span><span class="p">,</span><span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000 +/- 0.076&quot;</span>
433    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mf">0.000001</span><span class="p">,</span><span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e-3 +/- 7.6e-3&quot;</span>
434
435    <span class="c"># Zero values</span>
436    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e6 +/- 7.6e6&quot;</span>
437    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">764000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e6 +/- 0.76e6&quot;</span>
438    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>  <span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e6 +/- 0.076e6&quot;</span>
439    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>   <span class="mi">7640</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e3 +/- 7.6e3&quot;</span>
440    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>    <span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e3 +/- 0.76e3&quot;</span>
441    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>     <span class="mf">76.4</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e3 +/- 0.076e3&quot;</span>
442    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0 +/- 7.6&quot;</span>
443    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00 +/- 0.76&quot;</span>
444    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.0764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000 +/- 0.076&quot;</span>
445    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.0e-3 +/- 7.6e-3&quot;</span>
446    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.00e-3 +/- 0.76e-3&quot;</span>
447    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span>      <span class="mf">0.0000764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;0.000e-3 +/- 0.076e-3&quot;</span>
448
449    <span class="c"># negative values</span>
450    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">1235670</span><span class="p">,</span><span class="mi">766000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.24e6 +/- 0.77e6&quot;</span>
451    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">.</span><span class="mi">766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.24 +/- 0.77&quot;</span>
452    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-.</span><span class="mo">00000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">0000000766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.236e-6 +/- 0.077e-6&quot;</span>
453    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">12356.7</span><span class="p">,</span><span class="mf">7.64</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-12356.7 +/- 7.6&quot;</span>
454    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">123.567</span><span class="p">,</span><span class="mi">764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.12e3 +/- 0.76e3&quot;</span>
455    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1235.67</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.001e6 +/- 0.076e6&quot;</span>
456    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-.</span><span class="mo">000123567</span><span class="p">,</span><span class="o">.</span><span class="mo">00764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.1e-3 +/- 7.6e-3&quot;</span>
457    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">12356</span><span class="p">,</span><span class="mi">7640000</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.0e6 +/- 7.6e6&quot;</span>
458    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mi">12</span><span class="p">,</span><span class="mi">76400</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.000e6 +/- 0.076e6&quot;</span>
459    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">0.0001</span><span class="p">,</span><span class="mf">0.764</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-0.00 +/- 0.76&quot;</span>
460
461    <span class="c"># non-finite values</span>
462    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-inf&quot;</span>
463    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;inf&quot;</span>
464    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">NaN</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;NaN&quot;</span>
465   
466    <span class="c"># bad or missing uncertainty</span>
467    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="n">numpy</span><span class="o">.</span><span class="n">NaN</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
468    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">-</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
469    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="o">-</span><span class="mf">0.1</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
470    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="mi">0</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
471    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="bp">None</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.23567&quot;</span>
472    <span class="k">assert</span> <span class="n">value_str</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="n">numpy</span><span class="o">.</span><span class="n">inf</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.2 +/- inf&quot;</span>
473
474<span class="k">def</span> <span class="nf">test_default</span><span class="p">():</span>
475    <span class="c"># Check that the default is the compact format</span>
476    <span class="k">assert</span> <span class="n">format_uncertainty</span><span class="p">(</span><span class="o">-</span><span class="mf">1.23567</span><span class="p">,</span><span class="mf">0.766</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;-1.24(77)&quot;</span>
477
478<span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
479    <span class="sd">&quot;&quot;&quot;</span>
480<span class="sd">    Run all tests.</span>
481
482<span class="sd">    This is equivalent to &quot;nosetests --with-doctest&quot;</span>
483<span class="sd">    &quot;&quot;&quot;</span>
484    <span class="n">test_compact</span><span class="p">()</span>
485    <span class="n">test_pm</span><span class="p">()</span>
486    <span class="n">test_default</span><span class="p">()</span>
487   
488    <span class="kn">import</span> <span class="nn">doctest</span>
489    <span class="n">doctest</span><span class="o">.</span><span class="n">testmod</span><span class="p">()</span>
490
491<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span> <span class="n">main</span><span class="p">()</span>
492</pre></div>
493
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