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<div class="subTitle">org.apache.commons.math3.optimization.univariate</div>
<h2 title="Class UnivariateMultiStartOptimizer" class="title">Class UnivariateMultiStartOptimizer<FUNC extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></h2>
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<li>org.apache.commons.math3.optimization.univariate.UnivariateMultiStartOptimizer<FUNC></li>
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<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>FUNC</code> - Type of the objective function to be optimized.</dd></dl>
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html" title="interface in org.apache.commons.math3.optimization">BaseOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>>, <a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><FUNC></dd>
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<hr>
<div class="block"><strong>Deprecated.</strong>
<div class="block"><i>As of 3.1 (to be removed in 4.0).</i></div>
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<br>
<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public class <span class="strong">UnivariateMultiStartOptimizer<FUNC extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></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/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><FUNC></pre>
<div class="block">Special implementation of the <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate"><code>UnivariateOptimizer</code></a> interface
adding multi-start features to an existing optimizer.
This class wraps a classical optimizer to use it several times in
turn with different starting points in order to avoid being trapped
into a local extremum when looking for a global one.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>3.0</dd></dl>
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<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/optimization/univariate/UnivariateMultiStartOptimizer.html#UnivariateMultiStartOptimizer(org.apache.commons.math3.optimization.univariate.BaseUnivariateOptimizer,%20int,%20org.apache.commons.math3.random.RandomGenerator)">UnivariateMultiStartOptimizer</a></strong>(<a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a>> optimizer,
int starts,
<a href="../../../../../../org/apache/commons/math3/random/RandomGenerator.html" title="interface in org.apache.commons.math3.random">RandomGenerator</a> generator)</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Create a multi-start optimizer from a single-start optimizer.</div>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/optimization/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optimization">ConvergenceChecker</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#getConvergenceChecker()">getConvergenceChecker</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Get the convergence checker.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#getEvaluations()">getEvaluations</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Get the number of evaluations of the objective function.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#getMaxEvaluations()">getMaxEvaluations</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Get the maximal number of function evaluations.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#getOptima()">getOptima</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Get all the optima found during the last call to <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>.</div>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)">optimize</a></strong>(int maxEval,
<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> f,
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html" title="enum in org.apache.commons.math3.optimization">GoalType</a> goal,
double min,
double max)</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Find an optimum in the given interval.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double,%20double)">optimize</a></strong>(int maxEval,
<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> f,
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html" title="enum in org.apache.commons.math3.optimization">GoalType</a> goal,
double min,
double max,
double startValue)</code>
<div class="block"><strong>Deprecated.</strong> </div>
<div class="block">Find an optimum in the given interval, start at startValue.</div>
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<h3>Constructor Detail</h3>
<a name="UnivariateMultiStartOptimizer(org.apache.commons.math3.optimization.univariate.BaseUnivariateOptimizer, int, org.apache.commons.math3.random.RandomGenerator)">
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<h4>UnivariateMultiStartOptimizer</h4>
<pre>public UnivariateMultiStartOptimizer(<a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a>> optimizer,
int starts,
<a href="../../../../../../org/apache/commons/math3/random/RandomGenerator.html" title="interface in org.apache.commons.math3.random">RandomGenerator</a> generator)</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Create a multi-start optimizer from a single-start optimizer.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>optimizer</code> - Single-start optimizer to wrap.</dd><dd><code>starts</code> - Number of starts to perform. If <code>starts == 1</code>,
the <code>optimize</code> methods will return the same solution as
<code>optimizer</code> would.</dd><dd><code>generator</code> - Random generator to use for restarts.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></code> - if <code>optimizer</code> or <code>generator</code>
is <code>null</code>.</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/NotStrictlyPositiveException.html" title="class in org.apache.commons.math3.exception">NotStrictlyPositiveException</a></code> - if <code>starts < 1</code>.</dd></dl>
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<a name="getConvergenceChecker()">
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<h4>getConvergenceChecker</h4>
<pre>public <a href="../../../../../../org/apache/commons/math3/optimization/ConvergenceChecker.html" title="interface in org.apache.commons.math3.optimization">ConvergenceChecker</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>> getConvergenceChecker()</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Get the convergence checker.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html#getConvergenceChecker()">getConvergenceChecker</a></code> in interface <code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html" title="interface in org.apache.commons.math3.optimization">BaseOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the object used to check for convergence.</dd></dl>
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<a name="getMaxEvaluations()">
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<h4>getMaxEvaluations</h4>
<pre>public int getMaxEvaluations()</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Get the maximal number of function evaluations.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html#getMaxEvaluations()">getMaxEvaluations</a></code> in interface <code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html" title="interface in org.apache.commons.math3.optimization">BaseOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the maximal number of function evaluations.</dd></dl>
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<a name="getEvaluations()">
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<h4>getEvaluations</h4>
<pre>public int getEvaluations()</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Get the number of evaluations of the objective function.
The number of evaluations corresponds to the last call to the
<code>optimize</code> method. It is 0 if the method has not been
called yet.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html#getEvaluations()">getEvaluations</a></code> in interface <code><a href="../../../../../../org/apache/commons/math3/optimization/BaseOptimizer.html" title="interface in org.apache.commons.math3.optimization">BaseOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the number of evaluations of the objective function.</dd></dl>
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<a name="getOptima()">
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<h4>getOptima</h4>
<pre>public <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a>[] getOptima()</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Get all the optima found during the last call to <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>.
The optimizer stores all the optima found during a set of
restarts. The <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>
method returns the best point only. This method returns all the points
found at the end of each starts, including the best one already
returned by the <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>
method.
<br/>
The returned array as one element for each start as specified
in the constructor. It is ordered with the results from the
runs that did converge first, sorted from best to worst
objective value (i.e in ascending order if minimizing and in
descending order if maximizing), followed by <code>null</code> elements
corresponding to the runs that did not converge. This means all
elements will be <code>null</code> if the <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>
method did throw an exception.
This also means that if the first element is not <code>null</code>, it is
the best point found across all starts.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>an array containing the optima.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></code> - if <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)"><code>optimize</code></a>
has not been called.</dd></dl>
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</ul>
<a name="optimize(int,org.apache.commons.math3.analysis.UnivariateFunction,org.apache.commons.math3.optimization.GoalType,double,double)">
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<h4>optimize</h4>
<pre>public <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a> optimize(int maxEval,
<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> f,
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html" title="enum in org.apache.commons.math3.optimization">GoalType</a> goal,
double min,
double max)</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Find an optimum in the given interval.
An optimizer may require that the interval brackets a single optimum.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double)">optimize</a></code> in interface <code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>maxEval</code> - Maximum number of function evaluations.</dd><dd><code>f</code> - Function to optimize.</dd><dd><code>goal</code> - Type of optimization goal: either
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html#MAXIMIZE"><code>GoalType.MAXIMIZE</code></a> or <a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html#MINIMIZE"><code>GoalType.MINIMIZE</code></a>.</dd><dd><code>min</code> - Lower bound for the interval.</dd><dd><code>max</code> - Upper bound for the interval.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a (point, value) pair where the function is optimum.</dd></dl>
</li>
</ul>
<a name="optimize(int,org.apache.commons.math3.analysis.UnivariateFunction,org.apache.commons.math3.optimization.GoalType,double,double,double)">
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<h4>optimize</h4>
<pre>public <a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariatePointValuePair.html" title="class in org.apache.commons.math3.optimization.univariate">UnivariatePointValuePair</a> optimize(int maxEval,
<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> f,
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html" title="enum in org.apache.commons.math3.optimization">GoalType</a> goal,
double min,
double max,
double startValue)</pre>
<div class="block"><span class="strong">Deprecated.</span> </div>
<div class="block">Find an optimum in the given interval, start at startValue.
An optimizer may require that the interval brackets a single optimum.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html#optimize(int,%20FUNC,%20org.apache.commons.math3.optimization.GoalType,%20double,%20double,%20double)">optimize</a></code> in interface <code><a href="../../../../../../org/apache/commons/math3/optimization/univariate/BaseUnivariateOptimizer.html" title="interface in org.apache.commons.math3.optimization.univariate">BaseUnivariateOptimizer</a><<a href="../../../../../../org/apache/commons/math3/optimization/univariate/UnivariateMultiStartOptimizer.html" title="type parameter in UnivariateMultiStartOptimizer">FUNC</a> extends <a href="../../../../../../org/apache/commons/math3/analysis/UnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">UnivariateFunction</a>></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>maxEval</code> - Maximum number of function evaluations.</dd><dd><code>f</code> - Function to optimize.</dd><dd><code>goal</code> - Type of optimization goal: either
<a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html#MAXIMIZE"><code>GoalType.MAXIMIZE</code></a> or <a href="../../../../../../org/apache/commons/math3/optimization/GoalType.html#MINIMIZE"><code>GoalType.MINIMIZE</code></a>.</dd><dd><code>min</code> - Lower bound for the interval.</dd><dd><code>max</code> - Upper bound for the interval.</dd><dd><code>startValue</code> - Start value to use.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a (point, value) pair where the function is optimum.</dd></dl>
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