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| <div class="subTitle">org.apache.commons.math3.fitting.leastsquares</div> |
| <h2 title="Interface LeastSquaresProblem" class="title">Interface LeastSquaresProblem</h2> |
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| <dl> |
| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html" title="interface in org.apache.commons.math3.optim">OptimizationProblem</a><<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresAdapter.html" title="class in org.apache.commons.math3.fitting.leastsquares">LeastSquaresAdapter</a></dd> |
| </dl> |
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| <br> |
| <pre>public interface <span class="strong">LeastSquaresProblem</span> |
| extends <a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html" title="interface in org.apache.commons.math3.optim">OptimizationProblem</a><<a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a>></pre> |
| <div class="block">The data necessary to define a non-linear least squares problem. |
| <p> |
| Includes the observed values, computed model function, and |
| convergence/divergence criteria. Weights are implicit in <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html#getResiduals()"><code>LeastSquaresProblem.Evaluation.getResiduals()</code></a> and <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html#getJacobian()"><code>LeastSquaresProblem.Evaluation.getJacobian()</code></a>. |
| </p> |
| <p> |
| Instances are typically either created progressively using a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresBuilder.html" title="class in org.apache.commons.math3.fitting.leastsquares"><code>builder</code></a> or created at once using a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html" title="class in org.apache.commons.math3.fitting.leastsquares"><code>factory</code></a>. |
| </p></div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>3.3</dd> |
| <dt><span class="strong">Version:</span></dt> |
| <dd>$Id: LeastSquaresProblem.java 1571306 2014-02-24 14:57:44Z luc $</dd> |
| <dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresBuilder.html" title="class in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresBuilder</code></a>, |
| <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresFactory.html" title="class in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresFactory</code></a>, |
| <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresAdapter.html" title="class in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresAdapter</code></a></dd></dl> |
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| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a></strong></code> |
| <div class="block">An evaluation of a <a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html" title="interface in org.apache.commons.math3.fitting.leastsquares"><code>LeastSquaresProblem</code></a> at a particular point.</div> |
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| <td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#evaluate(org.apache.commons.math3.linear.RealVector)">evaluate</a></strong>(<a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a> point)</code> |
| <div class="block">Evaluate the model at the specified point.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#getObservationSize()">getObservationSize</a></strong>()</code> |
| <div class="block">Get the number of observations (rows in the Jacobian) in this problem.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#getParameterSize()">getParameterSize</a></strong>()</code> |
| <div class="block">Get the number of parameters (columns in the Jacobian) in this problem.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.html#getStart()">getStart</a></strong>()</code> |
| <div class="block">Gets the initial guess.</div> |
| </td> |
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| <h3>Methods inherited from interface org.apache.commons.math3.optim.<a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html" title="interface in org.apache.commons.math3.optim">OptimizationProblem</a></h3> |
| <code><a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html#getConvergenceChecker()">getConvergenceChecker</a>, <a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html#getEvaluationCounter()">getEvaluationCounter</a>, <a href="../../../../../../org/apache/commons/math3/optim/OptimizationProblem.html#getIterationCounter()">getIterationCounter</a></code></li> |
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| <h4>getStart</h4> |
| <pre><a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a> getStart()</pre> |
| <div class="block">Gets the initial guess.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the initial guess values.</dd></dl> |
| </li> |
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| <h4>getObservationSize</h4> |
| <pre>int getObservationSize()</pre> |
| <div class="block">Get the number of observations (rows in the Jacobian) in this problem.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the number of scalar observations</dd></dl> |
| </li> |
| </ul> |
| <a name="getParameterSize()"> |
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| <h4>getParameterSize</h4> |
| <pre>int getParameterSize()</pre> |
| <div class="block">Get the number of parameters (columns in the Jacobian) in this problem.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the number of scalar parameters</dd></dl> |
| </li> |
| </ul> |
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| <h4>evaluate</h4> |
| <pre><a href="../../../../../../org/apache/commons/math3/fitting/leastsquares/LeastSquaresProblem.Evaluation.html" title="interface in org.apache.commons.math3.fitting.leastsquares">LeastSquaresProblem.Evaluation</a> evaluate(<a href="../../../../../../org/apache/commons/math3/linear/RealVector.html" title="class in org.apache.commons.math3.linear">RealVector</a> point)</pre> |
| <div class="block">Evaluate the model at the specified point.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>point</code> - the parameter values.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the model's value and derivative at the given point.</dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/commons/math3/exception/TooManyEvaluationsException.html" title="class in org.apache.commons.math3.exception">TooManyEvaluationsException</a></code> - if the maximal number of evaluations (of the model vector function) is |
| exceeded.</dd></dl> |
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