/// <summary>
/// Interpolate.
/// </summary>
/// <param name="xValues"> the values </param>
/// <param name="yValuesMatrix"> the matrix </param>
/// <param name="x"> the s </param>
/// <returns> Values of the underlying cubic spline functions interpolating {yValuesMatrix.RowVectors} at the values of x </returns>
//JAVA TO C# CONVERTER WARNING: 'final' parameters are not available in .NET:
//ORIGINAL LINE: public com.opengamma.strata.collect.array.DoubleMatrix interpolate(final double[] xValues, final double[][] yValuesMatrix, final double[] x)
public virtual DoubleMatrix interpolate(double[] xValues, double[][] yValuesMatrix, double[] x)
{
ArgChecker.notNull(x, "x");
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.collect.array.DoubleMatrix matrix = com.opengamma.strata.collect.array.DoubleMatrix.copyOf(yValuesMatrix);
DoubleMatrix matrix = DoubleMatrix.copyOf(yValuesMatrix);
return(DoubleMatrix.ofArrayObjects(yValuesMatrix.Length, x.Length, i => interpolate(xValues, matrix.rowArray(i), x)));
}
/// <summary>
/// Interpolate.
/// </summary>
/// <param name="xValues"> the values </param>
/// <param name="yValues"> the values </param>
/// <param name="xMatrix"> the matrix </param>
/// <returns> Values of the underlying cubic spline function at the values of x </returns>
//JAVA TO C# CONVERTER WARNING: 'final' parameters are not available in .NET:
//ORIGINAL LINE: public com.opengamma.strata.collect.array.DoubleMatrix interpolate(final double[] xValues, final double[] yValues, final double[][] xMatrix)
public virtual DoubleMatrix interpolate(double[] xValues, double[] yValues, double[][] xMatrix)
{
ArgChecker.notNull(xMatrix, "xMatrix");
DoubleMatrix matrix = DoubleMatrix.copyOf(xMatrix);
return(DoubleMatrix.ofArrayObjects(xMatrix.Length, xMatrix[0].Length, i => interpolate(xValues, yValues, matrix.rowArray(i))));
}
/// <summary>
/// Interpolate.
/// </summary>
/// <param name="xValues"> the values </param>
/// <param name="yValuesMatrix"> the matrix </param>
/// <param name="x"> the x </param>
/// <returns> Values of the underlying cubic spline functions interpolating {yValuesMatrix.RowVectors} at the value of x </returns>
//JAVA TO C# CONVERTER WARNING: 'final' parameters are not available in .NET:
//ORIGINAL LINE: public com.opengamma.strata.collect.array.DoubleArray interpolate(final double[] xValues, final double[][] yValuesMatrix, final double x)
public virtual DoubleArray interpolate(double[] xValues, double[][] yValuesMatrix, double x)
{
DoubleMatrix matrix = DoubleMatrix.copyOf(yValuesMatrix);
return(DoubleArray.of(matrix.rowCount(), i => interpolate(xValues, matrix.rowArray(i), x)));
}
/// <summary>
/// Tests solve AX = B from A and B.
/// </summary>
public virtual void solveMatrix()
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final CholeskyDecompositionResult result = CDOG.apply(A5);
CholeskyDecompositionResult result = CDOG.apply(A5);
double[][] b = new double[][]
{
new double[] { 1.0, 2.0 },
new double[] { 2.0, 3.0 },
new double[] { 3.0, 4.0 },
new double[] { 4.0, -2.0 },
new double[] { -1.0, -1.0 }
};
DoubleMatrix x = result.solve(DoubleMatrix.copyOf(b));
DoubleMatrix ax = (DoubleMatrix)ALGEBRA.multiply(A5, x);
ArrayAsserts.assertArrayEquals("Cholesky decomposition OpenGamma - solve", b[0], ax.rowArray(0), 1.0E-10);
ArrayAsserts.assertArrayEquals("Cholesky decomposition OpenGamma - solve", b[1], ax.rowArray(1), 1.0E-10);
}