示例#1
0
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testRecoverOrginal()
        public virtual void testRecoverOrginal()
        {
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.math.impl.matrix.MatrixAlgebra algebra = getAlgebra();
            MatrixAlgebra algebra = Algebra;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.math.linearalgebra.DecompositionResult result = getSVD().apply(A);
            DecompositionResult result = SVD.apply(A);

            assertTrue(result is SVDecompositionResult);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final SVDecompositionResult svd_result = (SVDecompositionResult) result;
            SVDecompositionResult svd_result = (SVDecompositionResult)result;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix u = svd_result.getU();
            DoubleMatrix u = svd_result.U;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix w = com.opengamma.strata.collect.array.DoubleMatrix.diagonal(com.opengamma.strata.collect.array.DoubleArray.copyOf(svd_result.getSingularValues()));
            DoubleMatrix w = DoubleMatrix.diagonal(DoubleArray.copyOf(svd_result.SingularValues));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix vt = svd_result.getVT();
            DoubleMatrix vt = svd_result.VT;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix a = (com.opengamma.strata.collect.array.DoubleMatrix) algebra.multiply(algebra.multiply(u, w), vt);
            DoubleMatrix a = (DoubleMatrix)algebra.multiply(algebra.multiply(u, w), vt);

            checkEquals(A, a);
        }
示例#2
0
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testInvert()
        public virtual void testInvert()
        {
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.math.impl.matrix.MatrixAlgebra algebra = getAlgebra();
            MatrixAlgebra algebra = Algebra;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final SVDecompositionResult result = getSVD().apply(A);
            SVDecompositionResult result = SVD.apply(A);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix ut = result.getUT();
            DoubleMatrix ut = result.UT;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix v = result.getV();
            DoubleMatrix v = result.V;

//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double[] sv = result.getSingularValues();
            double[] sv = result.SingularValues;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n = sv.length;
            int n = sv.Length;

//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double[] svinv = new double[n];
            double[] svinv = new double[n];
            for (int i = 0; i < n; i++)
            {
                if (sv[i] == 0.0)
                {
                    svinv[i] = 0.0;
                }
                else
                {
                    svinv[i] = 1.0 / sv[i];
                }
            }
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix winv = com.opengamma.strata.collect.array.DoubleMatrix.diagonal(com.opengamma.strata.collect.array.DoubleArray.copyOf(svinv));
            DoubleMatrix winv = DoubleMatrix.diagonal(DoubleArray.copyOf(svinv));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix ainv = (com.opengamma.strata.collect.array.DoubleMatrix) algebra.multiply(algebra.multiply(v, winv), ut);
            DoubleMatrix ainv = (DoubleMatrix)algebra.multiply(algebra.multiply(v, winv), ut);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix identity = (com.opengamma.strata.collect.array.DoubleMatrix) algebra.multiply(A, ainv);
            DoubleMatrix identity = (DoubleMatrix)algebra.multiply(A, ainv);

            checkIdentity(identity);
        }