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| 50 | <h1>Source code for sas.fit.Loader</h1><div class="highlight"><pre> |
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| 51 | <span class="c"># class Loader to load any king of file</span> |
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| 52 | <span class="c">#import wx</span> |
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| 53 | <span class="c">#import string</span> |
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| 54 | <span class="kn">import</span> <span class="nn">numpy</span> |
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| 55 | |
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| 56 | <div class="viewcode-block" id="Load"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load">[docs]</a><span class="k">class</span> <span class="nc">Load</span><span class="p">:</span> |
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| 57 | <span class="sd">"""</span> |
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| 58 | <span class="sd"> This class is loading values from given file or value giving by the user</span> |
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| 59 | <span class="sd"> """</span> |
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| 60 | <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">y</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">dx</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">dy</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
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| 61 | <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">"a code search shows that this code is not active, and you are not seeing this message"</span><span class="p">)</span> |
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| 62 | <span class="c"># variable to store loaded values</span> |
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| 63 | <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">x</span> |
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| 64 | <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">y</span> |
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| 65 | <span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="n">dx</span> |
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| 66 | <span class="bp">self</span><span class="o">.</span><span class="n">dy</span> <span class="o">=</span> <span class="n">dy</span> |
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| 67 | <span class="bp">self</span><span class="o">.</span><span class="n">filename</span> <span class="o">=</span> <span class="bp">None</span> |
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| 68 | |
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| 69 | <div class="viewcode-block" id="Load.set_filename"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load.set_filename">[docs]</a> <span class="k">def</span> <span class="nf">set_filename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> |
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| 70 | <span class="sd">"""</span> |
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| 71 | <span class="sd"> Store path into a variable.If the user doesn't give </span> |
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| 72 | <span class="sd"> a path as a parameter a pop-up</span> |
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| 73 | <span class="sd"> window appears to select the file.</span> |
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| 74 | <span class="sd"> </span> |
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| 75 | <span class="sd"> :param path: the path given by the user</span> |
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| 76 | <span class="sd"> </span> |
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| 77 | <span class="sd"> """</span> |
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| 78 | <span class="bp">self</span><span class="o">.</span><span class="n">filename</span> <span class="o">=</span> <span class="n">path</span> |
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| 79 | </div> |
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| 80 | <div class="viewcode-block" id="Load.get_filename"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load.get_filename">[docs]</a> <span class="k">def</span> <span class="nf">get_filename</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
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| 81 | <span class="sd">""" return the file's path"""</span> |
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| 82 | <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">filename</span> |
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| 83 | </div> |
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| 84 | <div class="viewcode-block" id="Load.set_values"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load.set_values">[docs]</a> <span class="k">def</span> <span class="nf">set_values</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
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| 85 | <span class="sd">""" Store the values loaded from file in local variables"""</span> |
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| 86 | <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">filename</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span> |
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| 87 | <span class="n">input_f</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">filename</span><span class="p">,</span> <span class="s">'r'</span><span class="p">)</span> |
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| 88 | <span class="n">buff</span> <span class="o">=</span> <span class="n">input_f</span><span class="o">.</span><span class="n">read</span><span class="p">()</span> |
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| 89 | <span class="n">lines</span> <span class="o">=</span> <span class="n">buff</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">'</span><span class="se">\n</span><span class="s">'</span><span class="p">)</span> |
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| 90 | <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="p">[]</span> |
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| 91 | <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="p">[]</span> |
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| 92 | <span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="p">[]</span> |
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| 93 | <span class="bp">self</span><span class="o">.</span><span class="n">dy</span> <span class="o">=</span> <span class="p">[]</span> |
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| 94 | <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">lines</span><span class="p">:</span> |
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| 95 | <span class="k">try</span><span class="p">:</span> |
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| 96 | <span class="n">toks</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()</span> |
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| 97 | <span class="n">x</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">toks</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> |
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| 98 | <span class="n">y</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">toks</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span> |
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| 99 | <span class="n">dy</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">toks</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> |
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| 100 | |
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| 101 | <span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> |
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| 102 | <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">y</span><span class="p">)</span> |
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| 103 | <span class="bp">self</span><span class="o">.</span><span class="n">dy</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">dy</span><span class="p">)</span> |
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| 104 | <span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">))</span> |
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| 105 | <span class="k">except</span><span class="p">:</span> |
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| 106 | <span class="k">print</span> <span class="s">"READ ERROR"</span><span class="p">,</span> <span class="n">line</span> |
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| 107 | <span class="c"># Sanity check</span> |
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| 108 | <span class="k">if</span> <span class="ow">not</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">)</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dx</span><span class="p">):</span> |
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| 109 | <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> <span class="s">"x and dx have different length"</span> |
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| 110 | <span class="k">if</span> <span class="ow">not</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dy</span><span class="p">):</span> |
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| 111 | <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> <span class="s">"y and dy have different length"</span> |
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| 112 | |
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| 113 | </div> |
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| 114 | <div class="viewcode-block" id="Load.get_values"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load.get_values">[docs]</a> <span class="k">def</span> <span class="nf">get_values</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
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| 115 | <span class="sd">""" Return x, y, dx, dy"""</span> |
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| 116 | <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dx</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dy</span> |
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| 117 | </div> |
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| 118 | <div class="viewcode-block" id="Load.load_data"><a class="viewcode-back" href="../../../dev/api/sas.fit.html#sas.fit.Loader.Load.load_data">[docs]</a> <span class="k">def</span> <span class="nf">load_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span> |
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| 119 | <span class="sd">""" Return plottable"""</span> |
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| 120 | <span class="c">#load data</span> |
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| 121 | <span class="n">data</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> |
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| 122 | <span class="n">data</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> |
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| 123 | <span class="n">data</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dx</span> |
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| 124 | <span class="n">data</span><span class="o">.</span><span class="n">dy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dy</span> |
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| 125 | <span class="c">#Load its View class</span> |
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| 126 | <span class="c">#plottable.reset_view()</span> |
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| 127 | |
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| 128 | </div></div> |
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| 129 | <span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span> |
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| 130 | <span class="n">load</span> <span class="o">=</span> <span class="n">Load</span><span class="p">()</span> |
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| 131 | <span class="n">load</span><span class="o">.</span><span class="n">set_filename</span><span class="p">(</span><span class="s">"testdata_line.txt"</span><span class="p">)</span> |
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| 132 | <span class="k">print</span> <span class="n">load</span><span class="o">.</span><span class="n">get_filename</span><span class="p">()</span> |
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| 133 | <span class="n">load</span><span class="o">.</span><span class="n">set_values</span><span class="p">()</span> |
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| 134 | <span class="k">print</span> <span class="n">load</span><span class="o">.</span><span class="n">get_values</span><span class="p">()</span> |
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| 135 | |
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| 136 | |
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| 137 | </pre></div> |
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