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51  <h1>Source code for sas.perspectives.fitting.utils</h1><div class="highlight"><pre>
52<span class="sd">&quot;&quot;&quot;</span>
53<span class="sd">Module contains functions frequently used in this package</span>
54<span class="sd">&quot;&quot;&quot;</span>
55<span class="kn">import</span> <span class="nn">numpy</span>
56
57
58<div class="viewcode-block" id="get_weight"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.utils.get_weight">[docs]</a><span class="k">def</span> <span class="nf">get_weight</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">is2d</span><span class="p">,</span> <span class="n">flag</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
59    <span class="sd">&quot;&quot;&quot;</span>
60<span class="sd">    Received flag and compute error on data.</span>
61<span class="sd">    :param flag: flag to transform error of data.</span>
62<span class="sd">    :param is2d: flag to distinguish 1D to 2D Data</span>
63<span class="sd">    &quot;&quot;&quot;</span>
64    <span class="n">weight</span> <span class="o">=</span> <span class="bp">None</span>
65    <span class="k">if</span> <span class="n">is2d</span><span class="p">:</span>
66        <span class="n">dy_data</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">err_data</span>
67        <span class="n">data</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">data</span>
68    <span class="k">else</span><span class="p">:</span>
69        <span class="n">dy_data</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">dy</span>
70        <span class="n">data</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">y</span>
71    <span class="k">if</span> <span class="n">flag</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
72        <span class="n">weight</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">ones_like</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
73    <span class="k">elif</span> <span class="n">flag</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
74        <span class="n">weight</span> <span class="o">=</span> <span class="n">dy_data</span>
75    <span class="k">elif</span> <span class="n">flag</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
76        <span class="n">weight</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">abs</span><span class="p">(</span><span class="n">data</span><span class="p">))</span>
77    <span class="k">elif</span> <span class="n">flag</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
78        <span class="n">weight</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">abs</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
79    <span class="k">return</span> <span class="n">weight</span></div>
80</pre></div>
81
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