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- <h1>Source code for macop.operators.mutators.SimpleMutation</h1><div class="highlight"><pre>
- <span></span><span class="sd">"""Mutation implementation for binary solution, swap two bits randomly from solution</span>
- <span class="sd">"""</span>
- <span class="c1"># main imports</span>
- <span class="kn">import</span> <span class="nn">random</span>
- <span class="kn">import</span> <span class="nn">sys</span>
- <span class="c1"># module imports</span>
- <span class="kn">from</span> <span class="nn">.Mutation</span> <span class="kn">import</span> <span class="n">Mutation</span>
- <span class="kn">from</span> <span class="nn">...utils.modules</span> <span class="kn">import</span> <span class="n">load_class</span>
- <div class="viewcode-block" id="SimpleMutation"><a class="viewcode-back" href="../../../../macop/macop.operators.mutators.SimpleMutation.html#macop.operators.mutators.SimpleMutation.SimpleMutation">[docs]</a><span class="k">class</span> <span class="nc">SimpleMutation</span><span class="p">(</span><span class="n">Mutation</span><span class="p">):</span>
- <span class="sd">"""Mutation implementation for binary solution, swap two bits randomly from solution</span>
- <span class="sd"> Attributes:</span>
- <span class="sd"> kind: {KindOperator} -- specify the kind of operator</span>
- <span class="sd"> """</span>
- <div class="viewcode-block" id="SimpleMutation.apply"><a class="viewcode-back" href="../../../../macop/macop.operators.mutators.SimpleMutation.html#macop.operators.mutators.SimpleMutation.SimpleMutation.apply">[docs]</a> <span class="k">def</span> <span class="nf">apply</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">solution</span><span class="p">):</span>
- <span class="sd">"""Create new solution based on solution passed as parameter</span>
- <span class="sd"> Args:</span>
- <span class="sd"> solution: {Solution} -- the solution to use for generating new solution</span>
- <span class="sd"> Returns:</span>
- <span class="sd"> {Solution} -- new generated solution</span>
- <span class="sd"> """</span>
- <span class="n">size</span> <span class="o">=</span> <span class="n">solution</span><span class="o">.</span><span class="n">_size</span>
- <span class="n">firstCell</span> <span class="o">=</span> <span class="mi">0</span>
- <span class="n">secondCell</span> <span class="o">=</span> <span class="mi">0</span>
- <span class="c1"># copy data of solution</span>
- <span class="n">currentData</span> <span class="o">=</span> <span class="n">solution</span><span class="o">.</span><span class="n">_data</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
- <span class="k">while</span> <span class="n">firstCell</span> <span class="o">==</span> <span class="n">secondCell</span><span class="p">:</span>
- <span class="n">firstCell</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
- <span class="n">secondCell</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
- <span class="n">temp</span> <span class="o">=</span> <span class="n">currentData</span><span class="p">[</span><span class="n">firstCell</span><span class="p">]</span>
- <span class="c1"># swicth values</span>
- <span class="n">currentData</span><span class="p">[</span><span class="n">firstCell</span><span class="p">]</span> <span class="o">=</span> <span class="n">currentData</span><span class="p">[</span><span class="n">secondCell</span><span class="p">]</span>
- <span class="n">currentData</span><span class="p">[</span><span class="n">secondCell</span><span class="p">]</span> <span class="o">=</span> <span class="n">temp</span>
- <span class="c1"># create solution of same kind with new data</span>
- <span class="n">class_name</span> <span class="o">=</span> <span class="nb">type</span><span class="p">(</span><span class="n">solution</span><span class="p">)</span><span class="o">.</span><span class="vm">__name__</span>
- <span class="c1"># dynamically load solution class if unknown</span>
- <span class="k">if</span> <span class="n">class_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">modules</span><span class="p">:</span>
- <span class="n">load_class</span><span class="p">(</span><span class="n">class_name</span><span class="p">,</span> <span class="nb">globals</span><span class="p">())</span>
- <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="nb">globals</span><span class="p">()[</span><span class="s1">'macop.solutions.'</span> <span class="o">+</span> <span class="n">class_name</span><span class="p">],</span>
- <span class="n">class_name</span><span class="p">)(</span><span class="n">currentData</span><span class="p">,</span> <span class="n">size</span><span class="p">)</span></div></div>
- </pre></div>
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