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<h2 title="Interface Mutable" class="title">Interface Mutable</h2>
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<pre>public interface <span class="typeNameLabel">Mutable</span></pre>
<div class="block"><code>Mutable</code> declares the expected behaviour of any
part of a chromosome that is mutable, more specifically
nodes or outputs. Inputs are not mutable since they don't have
connections or functions.
<br><br>
This interface provides a way to deal with mutable elements
generically without having to specify whether they are nodes
or outputs. When mutating a mutable, <code>mutate()</code> is guaranteed
to perform a fair mutation.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Eduardo Pedroni</dd>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../jcgp/backend/population/Mutable.html#copyOf-jcgp.backend.population.Mutable-">copyOf</a></span>(<a href="../../../jcgp/backend/population/Mutable.html" title="interface in jcgp.backend.population">Mutable</a> element)</code>
<div class="block">Asserts if the specified element is a copy of the elements
this is called on.<br>
This method returns true if and only if:
the elements being compared are not the same instance;
the connections of the compared elements are not the same instance;
the elements have the same function (in the case of Node);
the grid position of the elements themselves are the same;
the grid position of all equivalent connections are the same;
<br><br>
The relationship computed by this method is:
symmetric: a.copyOf(b) == b.copyOf(a);
not reflexive: a.copyOf(a) returns false;
not transitive: if a.copyOf(b) is true and b.copyOf(c) is true, a.copyOf(c) is
not necessarily true since it is possible that a == c.
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../jcgp/backend/population/Mutable.html#mutate--">mutate</a></span>()</code>
<div class="block">This method performs an arbitrary mutation on the <code>Mutable</code>.</div>
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<h4>mutate</h4>
<pre>void mutate()</pre>
<div class="block">This method performs an arbitrary mutation on the <code>Mutable</code>.
<br><br>
In the case of nodes, this chooses to mutate a function or connection
fairly, and carries out the required mutation by using the node's own
reference to chromosome.
<br><br>
In the case of outputs, this simply picks a random connection to serve
as the source - any connection is allowed.</div>
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<h4>copyOf</h4>
<pre>boolean copyOf(<a href="../../../jcgp/backend/population/Mutable.html" title="interface in jcgp.backend.population">Mutable</a> element)</pre>
<div class="block">Asserts if the specified element is a copy of the elements
this is called on.<br>
This method returns true if and only if:
<ul>
<li>the elements being compared are not the same instance;</li>
<li>the connections of the compared elements are not the same instance;</li>
<li>the elements have the same function (in the case of Node);</li>
<li>the grid position of the elements themselves are the same;</li>
<li>the grid position of all equivalent connections are the same;</li>
</ul>
<br><br>
The relationship computed by this method is:
<ul>
<li>symmetric: a.copyOf(b) == b.copyOf(a);</li>
<li>not reflexive: a.copyOf(a) returns false;</li>
<li>not transitive: if a.copyOf(b) is true and b.copyOf(c) is true, a.copyOf(c) is
not necessarily true since it is possible that a == c.</li>
</ul></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>element</code> - the mutable element to compare to.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if <code>element</code> is a copy of this element.</dd>
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