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51  <h1>Source code for sas.models.NullModel</h1><div class="highlight"><pre>
52<span class="c">#!/usr/bin/env python</span>
53<span class="sd">&quot;&quot;&quot; Provide sin(x) function as a BaseComponent model</span>
54<span class="sd">&quot;&quot;&quot;</span>
55
56<span class="kn">from</span> <span class="nn">sas.models.BaseComponent</span> <span class="kn">import</span> <span class="n">BaseComponent</span>
57<span class="kn">import</span> <span class="nn">math</span>
58 
59<div class="viewcode-block" id="NullModel"><a class="viewcode-back" href="../../../dev/api/sas.models.html#sas.models.NullModel.NullModel">[docs]</a><span class="k">class</span> <span class="nc">NullModel</span><span class="p">(</span><span class="n">BaseComponent</span><span class="p">):</span>
60    <span class="sd">&quot;&quot;&quot; Class that evaluates a sin(x) model. </span>
61<span class="sd">    &quot;&quot;&quot;</span>
62       
63    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
64        <span class="sd">&quot;&quot;&quot; Initialization &quot;&quot;&quot;</span>
65       
66        <span class="c"># Initialize BaseComponent first, then sphere</span>
67        <span class="n">BaseComponent</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
68       
69        <span class="c">## Name of the model</span>
70        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s">&quot;Error!&quot;</span>
71        <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">=</span><span class="s">&quot;&quot;&quot;Error  model</span>
72<span class="s">        F(x)= 0</span>
73<span class="s">        &quot;&quot;&quot;</span>
74       
75<div class="viewcode-block" id="NullModel.clone"><a class="viewcode-back" href="../../../dev/api/sas.models.html#sas.models.NullModel.NullModel.clone">[docs]</a>    <span class="k">def</span> <span class="nf">clone</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
76        <span class="sd">&quot;&quot;&quot; Return a identical copy of self &quot;&quot;&quot;</span>
77        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_clone</span><span class="p">(</span><span class="n">NullModel</span><span class="p">())</span>   
78   </div>
79<div class="viewcode-block" id="NullModel.run"><a class="viewcode-back" href="../../../dev/api/sas.models.html#sas.models.NullModel.NullModel.run">[docs]</a>    <span class="k">def</span> <span class="nf">run</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="mf">0.0</span><span class="p">):</span>
80        <span class="sd">&quot;&quot;&quot; Evaluate the model</span>
81<span class="sd">            @param x: input x</span>
82<span class="sd">            @return: 1</span>
83<span class="sd">        &quot;&quot;&quot;</span>
84        <span class="k">if</span> <span class="n">x</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;list&#39;</span><span class="p">:</span>
85            <span class="k">return</span> <span class="mi">0</span>
86        <span class="k">elif</span> <span class="n">x</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;tuple&#39;</span><span class="p">:</span>
87            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> <span class="s">&quot;Tuples are not allowed as input to BaseComponent models&quot;</span>
88        <span class="k">else</span><span class="p">:</span>
89            <span class="k">return</span> <span class="mi">0</span>
90   </div>
91<div class="viewcode-block" id="NullModel.runXY"><a class="viewcode-back" href="../../../dev/api/sas.models.html#sas.models.NullModel.NullModel.runXY">[docs]</a>    <span class="k">def</span> <span class="nf">runXY</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="mf">0.0</span><span class="p">):</span>
92        <span class="sd">&quot;&quot;&quot; Evaluate the model</span>
93<span class="sd">            @param x: input x, or [x, y] [radian]</span>
94<span class="sd">            @return: sin(x) or sin(x)*sin(y)</span>
95<span class="sd">        &quot;&quot;&quot;</span>
96        <span class="k">if</span> <span class="n">x</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;list&#39;</span><span class="p">:</span>
97            <span class="k">return</span> <span class="mi">0</span>
98        <span class="k">elif</span> <span class="n">x</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="o">==</span> <span class="s">&#39;tuple&#39;</span><span class="p">:</span>
99            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> <span class="s">&quot;Tuples are not allowed as input to BaseComponent models&quot;</span>
100        <span class="k">else</span><span class="p">:</span>
101            <span class="k">return</span> <span class="mi">0</span>
102   
103<span class="c"># End of file</span></div></div>
104</pre></div>
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