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diff --git a/commons-math3-3.6.1/docs/apidocs/org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html b/commons-math3-3.6.1/docs/apidocs/org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html new file mode 100644 index 0000000..8a8038f --- /dev/null +++ b/commons-math3-3.6.1/docs/apidocs/org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html @@ -0,0 +1,372 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<!-- NewPage --> +<html lang="en"> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<title>MultivariateFunctionMappingAdapter (Apache Commons Math 3.6.1 API)</title> +<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<script type="text/javascript"><!-- + if (location.href.indexOf('is-external=true') == -1) { + parent.document.title="MultivariateFunctionMappingAdapter (Apache Commons Math 3.6.1 API)"; 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+ if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li>Nested | </li> +<li>Field | </li> +<li><a href="#constructor_summary">Constr</a> | </li> +<li><a href="#method_summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li>Field | </li> +<li><a href="#constructor_detail">Constr</a> | </li> +<li><a href="#method_detail">Method</a></li> +</ul> +</div> +<a name="skip-navbar_top"> +<!-- --> +</a></div> +<!-- ========= END OF TOP NAVBAR ========= --> +<!-- ======== START OF CLASS DATA ======== --> +<div class="header"> +<div class="subTitle">org.apache.commons.math3.optim.nonlinear.scalar</div> +<h2 title="Class MultivariateFunctionMappingAdapter" class="title">Class MultivariateFunctionMappingAdapter</h2> +</div> +<div class="contentContainer"> +<ul class="inheritance"> +<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li>org.apache.commons.math3.optim.nonlinear.scalar.MultivariateFunctionMappingAdapter</li> +</ul> +</li> +</ul> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<dl> +<dt>All Implemented Interfaces:</dt> +<dd><a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateFunction</a></dd> +</dl> +<hr> +<br> +<pre>public class <span class="strong">MultivariateFunctionMappingAdapter</span> +extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> +implements <a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateFunction</a></pre> +<div class="block"><p>Adapter for mapping bounded <a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis"><code>MultivariateFunction</code></a> to unbounded ones.</p> + + <p> + This adapter can be used to wrap functions subject to simple bounds on + parameters so they can be used by optimizers that do <em>not</em> directly + support simple bounds. + </p> + <p> + The principle is that the user function that will be wrapped will see its + parameters bounded as required, i.e when its <code>value</code> method is called + with argument array <code>point</code>, the elements array will fulfill requirement + <code>lower[i] <= point[i] <= upper[i]</code> for all i. Some of the components + may be unbounded or bounded only on one side if the corresponding bound is + set to an infinite value. The optimizer will not manage the user function by + itself, but it will handle this adapter and it is this adapter that will take + care the bounds are fulfilled. The adapter <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#value(double[])"><code>value(double[])</code></a> method will + be called by the optimizer with unbound parameters, and the adapter will map + the unbounded value to the bounded range using appropriate functions like + <a href="../../../../../../../org/apache/commons/math3/analysis/function/Sigmoid.html" title="class in org.apache.commons.math3.analysis.function"><code>Sigmoid</code></a> for double bounded elements for example. + </p> + <p> + As the optimizer sees only unbounded parameters, it should be noted that the + start point or simplex expected by the optimizer should be unbounded, so the + user is responsible for converting his bounded point to unbounded by calling + <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#boundedToUnbounded(double[])"><code>boundedToUnbounded(double[])</code></a> before providing them to the optimizer. + For the same reason, the point returned by the <a href="../../../../../../../org/apache/commons/math3/optimization/BaseMultivariateOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double[])"><code>BaseMultivariateOptimizer.optimize(int, + MultivariateFunction, org.apache.commons.math3.optimization.GoalType, double[])</code></a> + method is unbounded. So to convert this point to bounded, users must call + <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#unboundedToBounded(double[])"><code>unboundedToBounded(double[])</code></a> by themselves!</p> + <p> + This adapter is only a poor man solution to simple bounds optimization constraints + that can be used with simple optimizers like + <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/noderiv/SimplexOptimizer.html" title="class in org.apache.commons.math3.optim.nonlinear.scalar.noderiv"><code>SimplexOptimizer</code></a>. + A better solution is to use an optimizer that directly supports simple bounds like + <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/noderiv/CMAESOptimizer.html" title="class in org.apache.commons.math3.optim.nonlinear.scalar.noderiv"><code>CMAESOptimizer</code></a> or + <a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/noderiv/BOBYQAOptimizer.html" title="class in org.apache.commons.math3.optim.nonlinear.scalar.noderiv"><code>BOBYQAOptimizer</code></a>. + One caveat of this poor-man's solution is that behavior near the bounds may be + numerically unstable as bounds are mapped from infinite values. + Another caveat is that convergence values are evaluated by the optimizer with + respect to unbounded variables, so there will be scales differences when + converted to bounded variables. + </p></div> +<dl><dt><span class="strong">Since:</span></dt> + <dd>3.0</dd> +<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionPenaltyAdapter.html" title="class in org.apache.commons.math3.optim.nonlinear.scalar"><code>MultivariateFunctionPenaltyAdapter</code></a></dd></dl> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- ======== CONSTRUCTOR SUMMARY ======== --> +<ul class="blockList"> +<li class="blockList"><a name="constructor_summary"> +<!-- --> +</a> +<h3>Constructor Summary</h3> +<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> +<caption><span>Constructors</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colOne" scope="col">Constructor and Description</th> +</tr> +<tr class="altColor"> +<td class="colOne"><code><strong><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#MultivariateFunctionMappingAdapter(org.apache.commons.math3.analysis.MultivariateFunction,%20double[],%20double[])">MultivariateFunctionMappingAdapter</a></strong>(<a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateFunction</a> bounded, + double[] lower, + double[] upper)</code> +<div class="block">Simple constructor.</div> +</td> +</tr> +</table> +</li> +</ul> +<!-- ========== METHOD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_summary"> +<!-- --> +</a> +<h3>Method Summary</h3> +<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> +<caption><span>Methods</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colFirst" scope="col">Modifier and Type</th> +<th class="colLast" scope="col">Method and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>double[]</code></td> +<td class="colLast"><code><strong><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#boundedToUnbounded(double[])">boundedToUnbounded</a></strong>(double[] point)</code> +<div class="block">Maps an array from bounded to unbounded.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>double[]</code></td> +<td class="colLast"><code><strong><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#unboundedToBounded(double[])">unboundedToBounded</a></strong>(double[] point)</code> +<div class="block">Maps an array from unbounded to bounded.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>double</code></td> +<td class="colLast"><code><strong><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#value(double[])">value</a></strong>(double[] point)</code> +<div class="block">Compute the underlying function value from an unbounded point.</div> +</td> +</tr> +</table> +<ul class="blockList"> +<li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> +<!-- --> +</a> +<h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> +<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +<div class="details"> +<ul class="blockList"> +<li class="blockList"> +<!-- ========= CONSTRUCTOR DETAIL ======== --> +<ul class="blockList"> +<li class="blockList"><a name="constructor_detail"> +<!-- --> +</a> +<h3>Constructor Detail</h3> +<a name="MultivariateFunctionMappingAdapter(org.apache.commons.math3.analysis.MultivariateFunction, double[], double[])"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>MultivariateFunctionMappingAdapter</h4> +<pre>public MultivariateFunctionMappingAdapter(<a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateFunction</a> bounded, + double[] lower, + double[] upper)</pre> +<div class="block">Simple constructor.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>bounded</code> - bounded function</dd><dd><code>lower</code> - lower bounds for each element of the input parameters array + (some elements may be set to <code>Double.NEGATIVE_INFINITY</code> for + unbounded values)</dd><dd><code>upper</code> - upper bounds for each element of the input parameters array + (some elements may be set to <code>Double.POSITIVE_INFINITY</code> for + unbounded values)</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="../../../../../../../org/apache/commons/math3/exception/DimensionMismatchException.html" title="class in org.apache.commons.math3.exception">DimensionMismatchException</a></code> - if lower and upper bounds are not + consistent, either according to dimension or to values</dd></dl> +</li> +</ul> +</li> +</ul> +<!-- ============ METHOD DETAIL ========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_detail"> +<!-- --> +</a> +<h3>Method Detail</h3> +<a name="unboundedToBounded(double[])"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>unboundedToBounded</h4> +<pre>public double[] unboundedToBounded(double[] point)</pre> +<div class="block">Maps an array from unbounded to bounded.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>point</code> - Unbounded values.</dd> +<dt><span class="strong">Returns:</span></dt><dd>the bounded values.</dd></dl> +</li> +</ul> +<a name="boundedToUnbounded(double[])"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>boundedToUnbounded</h4> +<pre>public double[] boundedToUnbounded(double[] point)</pre> +<div class="block">Maps an array from bounded to unbounded.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>point</code> - Bounded values.</dd> +<dt><span class="strong">Returns:</span></dt><dd>the unbounded values.</dd></dl> +</li> +</ul> +<a name="value(double[])"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>value</h4> +<pre>public double value(double[] point)</pre> +<div class="block">Compute the underlying function value from an unbounded point. + <p> + This method simply bounds the unbounded point using the mappings + set up at construction and calls the underlying function using + the bounded point. + </p></div> +<dl> +<dt><strong>Specified by:</strong></dt> +<dd><code><a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html#value(double[])">value</a></code> in interface <code><a href="../../../../../../../org/apache/commons/math3/analysis/MultivariateFunction.html" title="interface in org.apache.commons.math3.analysis">MultivariateFunction</a></code></dd> +<dt><span class="strong">Parameters:</span></dt><dd><code>point</code> - unbounded value</dd> +<dt><span class="strong">Returns:</span></dt><dd>underlying function value</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../../org/apache/commons/math3/optim/nonlinear/scalar/MultivariateFunctionMappingAdapter.html#unboundedToBounded(double[])"><code>unboundedToBounded(double[])</code></a></dd></dl> +</li> +</ul> +</li> +</ul> +</li> +</ul> +</div> 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