/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.strata.math.impl.linearalgebra;
import org.apache.commons.math3.linear.RealMatrix;
import org.apache.commons.math3.linear.SingularValueDecomposition;
import com.opengamma.strata.collect.ArgChecker;
import com.opengamma.strata.collect.array.DoubleMatrix;
import com.opengamma.strata.math.impl.util.CommonsMathWrapper;
/**
* This class is a wrapper for the <a href="http://commons.apache.org/math/api-2.1/org/apache/commons/math/linear/SingularValueDecompositionImpl.html">Commons Math library implementation</a>
* of singular value decomposition.
*/
public class SVDecompositionCommons extends Decomposition<SVDecompositionResult> {
@Override
public SVDecompositionResult apply(DoubleMatrix x) {
ArgChecker.notNull(x, "x");
MatrixValidate.notNaNOrInfinite(x);
RealMatrix commonsMatrix = CommonsMathWrapper.wrap(x);
SingularValueDecomposition svd = new SingularValueDecomposition(commonsMatrix);
return new SVDecompositionCommonsResult(svd);
}
}