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<div class="subTitle">jcgp.backend.modules.problem</div>
<h2 title="Class DigitalCircuitProblem" class="title">Class DigitalCircuitProblem</h2>
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<li>java.lang.Object</li>
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<li><a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html" title="class in jcgp.backend.modules.problem">jcgp.backend.modules.problem.TestCaseProblem</a><<a href="../../../../jcgp/backend/function/UnsignedInteger.html" title="class in jcgp.backend.function">UnsignedInteger</a>></li>
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<pre>public class <span class="typeNameLabel">DigitalCircuitProblem</span>
extends <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html" title="class in jcgp.backend.modules.problem">TestCaseProblem</a><<a href="../../../../jcgp/backend/function/UnsignedInteger.html" title="class in jcgp.backend.function">UnsignedInteger</a>></pre>
<div class="block">Digital circuit problem
<br><br>
Using this problem type, digital logic circuits can be evolved.
<code>parseData()</code> must be used to load the desired circuit
truth table in the standard CGP .plu format.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Eduardo Pedroni</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../jcgp/backend/function/DigitalCircuitFunctions.html" title="class in jcgp.backend.function"><code>DigitalCircuitFunctions</code></a></dd>
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<code><a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.TestCase.html" title="class in jcgp.backend.modules.problem">TestCaseProblem.TestCase</a><<a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.TestCase.html" title="type parameter in TestCaseProblem.TestCase">U</a>></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../jcgp/backend/modules/problem/DigitalCircuitProblem.html#DigitalCircuitProblem-jcgp.backend.resources.Resources-">DigitalCircuitProblem</a></span>(<a href="../../../../jcgp/backend/resources/Resources.html" title="class in jcgp.backend.resources">Resources</a> resources)</code>
<div class="block">Construct a new instance of DigitalCircuitProblem.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jcgp/backend/modules/problem/DigitalCircuitProblem.html#evaluate-jcgp.backend.population.Population-">evaluate</a></span>(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a> population)</code>
<div class="block">The most important method of the problem type.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jcgp/backend/modules/problem/DigitalCircuitProblem.html#hasPerfectSolution-jcgp.backend.population.Population-">hasPerfectSolution</a></span>(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a> population)</code>
<div class="block">Used to assert whether a given population contains a perfect solution
to the problem.</div>
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<td class="colFirst"><code><a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.TestCase.html" title="class in jcgp.backend.modules.problem">TestCaseProblem.TestCase</a><<a href="../../../../jcgp/backend/function/UnsignedInteger.html" title="class in jcgp.backend.function">UnsignedInteger</a>></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jcgp/backend/modules/problem/DigitalCircuitProblem.html#parseTestCase-java.lang.String:A-java.lang.String:A-">parseTestCase</a></span>(java.lang.String[] inputs,
java.lang.String[] outputs)</code>
<div class="block">This method is used internally by <code>addTestCase()</code> in order
to appropriately parse strings into the right data type for the
test cases.</div>
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<code><a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#addTestCase-java.lang.String:A-java.lang.String:A-">addTestCase</a>, <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#clearTestCases--">clearTestCases</a>, <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#getTestCases--">getTestCases</a>, <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#hasImprovement-jcgp.backend.population.Population-">hasImprovement</a>, <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#parseProblemData-java.io.File-jcgp.backend.resources.ModifiableResources-">parseProblemData</a></code></li>
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<code><a href="../../../../jcgp/backend/modules/problem/Problem.html#getBestFitness--">getBestFitness</a>, <a href="../../../../jcgp/backend/modules/problem/Problem.html#getFileExtension--">getFileExtension</a>, <a href="../../../../jcgp/backend/modules/problem/Problem.html#getFitnessOrientation--">getFitnessOrientation</a>, <a href="../../../../jcgp/backend/modules/problem/Problem.html#getFunctionSet--">getFunctionSet</a>, <a href="../../../../jcgp/backend/modules/problem/Problem.html#reset--">reset</a></code></li>
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<h4>DigitalCircuitProblem</h4>
<pre>public DigitalCircuitProblem(<a href="../../../../jcgp/backend/resources/Resources.html" title="class in jcgp.backend.resources">Resources</a> resources)</pre>
<div class="block">Construct a new instance of DigitalCircuitProblem.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>resources</code> - a reference to the experiment's resources.</dd>
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<h4>evaluate</h4>
<pre>public void evaluate(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a> population)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../jcgp/backend/modules/problem/Problem.html#evaluate-jcgp.backend.population.Population-">Problem</a></code></span></div>
<div class="block">The most important method of the problem type. This is called once
per generation, when the new population has been generated.
<br><br>
The basic functionality of this method is to loop through all chromosomes
in the population and decode them according to the problem type. The
fitness of each chromosome is then calculated using the problem data
or otherwise (subjective problem types such as art generation might
leave fitness evaluations up to the user) and assigned to the appropriate
chromosome.
<br><br>
In addition, realisations of this method should update the value of
bestFitness as appropriate, since the value of this parameter is displayed
if a GUI is in use.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../jcgp/backend/modules/problem/Problem.html#evaluate-jcgp.backend.population.Population-">evaluate</a></code> in class <code><a href="../../../../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>population</code> - the population to be evaluated.</dd>
</dl>
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<h4>parseTestCase</h4>
<pre>public <a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.TestCase.html" title="class in jcgp.backend.modules.problem">TestCaseProblem.TestCase</a><<a href="../../../../jcgp/backend/function/UnsignedInteger.html" title="class in jcgp.backend.function">UnsignedInteger</a>> parseTestCase(java.lang.String[] inputs,
java.lang.String[] outputs)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../jcgp/backend/modules/problem/TestCaseProblem.html#parseTestCase-java.lang.String:A-java.lang.String:A-">TestCaseProblem</a></code></span></div>
<div class="block">This method is used internally by <code>addTestCase()</code> in order
to appropriately parse strings into the right data type for the
test cases. Since the data type is problem-dependent, subclasses must
implement this method. This method must return a built <code>TestCase</code>
object from the arguments given.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputs</code> - the inputs represented as strings.</dd>
<dd><code>outputs</code> - the outputs represented as strings.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the parsed test case.</dd>
</dl>
</li>
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<h4>hasPerfectSolution</h4>
<pre>public int hasPerfectSolution(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a> population)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../jcgp/backend/modules/problem/Problem.html#hasPerfectSolution-jcgp.backend.population.Population-">Problem</a></code></span></div>
<div class="block">Used to assert whether a given population contains a perfect solution
to the problem. It is up to the problem to define what qualifies
a perfect solution, as some problems (subject ones such as music and
art evolution, for example) might not have perfect solutions at all.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../jcgp/backend/modules/problem/Problem.html#hasPerfectSolution-jcgp.backend.population.Population-">hasPerfectSolution</a></code> in class <code><a href="../../../../jcgp/backend/modules/problem/Problem.html" title="class in jcgp.backend.modules.problem">Problem</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>population</code> - the population to search through for a perfect chromosome.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the perfect solution index, if one exits, -1 if no perfect solution was found.</dd>
</dl>
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