/// <summary> /// PiecewiseCubicHermiteSplineInterpolator is not modified for positive data /// </summary> public virtual void noModificationTest() { //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[] xValues = new double[] {1.0, 2.0, 3.0, 4.0, 5.0 }; double[] xValues = new double[] { 1.0, 2.0, 3.0, 4.0, 5.0 }; //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[][] yValues = new double[][] { {0.1, 1.0, 1.0, 20.0, 5.0 }, {1.0, 2.0, 3.0, 0.0, 0.0 } }; double[][] yValues = new double[][] { new double[] { 0.1, 1.0, 1.0, 20.0, 5.0 }, new double[] { 1.0, 2.0, 3.0, 0.0, 0.0 } }; PiecewisePolynomialInterpolator interp = new PiecewiseCubicHermiteSplineInterpolator(); PiecewisePolynomialResult result = interp.interpolate(xValues, yValues); PiecewisePolynomialInterpolator interpPos = new NonnegativityPreservingCubicSplineInterpolator(interp); PiecewisePolynomialResult resultPos = interpPos.interpolate(xValues, yValues); assertEquals(resultPos.Dimensions, result.Dimensions); assertEquals(resultPos.NumberOfIntervals, result.NumberOfIntervals); assertEquals(resultPos.Order, result.Order); for (int i = 1; i < xValues.Length - 1; ++i) { for (int j = 0; j < 4; ++j) { //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double ref = result.getCoefMatrix().get(i, j) == 0.0 ? 1.0 : Math.abs(result.getCoefMatrix().get(i, j)); double @ref = result.CoefMatrix.get(i, j) == 0.0 ? 1.0 : Math.Abs(result.CoefMatrix.get(i, j)); assertEquals(resultPos.CoefMatrix.get(i, j), result.CoefMatrix.get(i, j), @ref * EPS); } } }
/// //JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes: //ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void dataShortMultiTest() public virtual void dataShortMultiTest() { //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[] xValues = new double[] {1.0, 2.0}; double[] xValues = new double[] { 1.0, 2.0 }; //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[][] yValues = new double[][] { {0.0, 0.1 }, {0.0, 0.1 } }; double[][] yValues = new double[][] { new double[] { 0.0, 0.1 }, new double[] { 0.0, 0.1 } }; PiecewisePolynomialInterpolator interp = new PiecewiseCubicHermiteSplineInterpolator(); PiecewisePolynomialInterpolator interpPos = new MonotonicityPreservingCubicSplineInterpolator(interp); interpPos.interpolate(xValues, yValues); }
/// <summary> /// PiecewiseCubicHermiteSplineInterpolator is not modified except the first 2 and last 2 intervals /// </summary> public virtual void localMonotonicityDec2Test() { //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[] xValues = new double[] {-2.0, 3.0, 4.0, 8.0, 9.1, 10.0, 12.0, 14.0 }; double[] xValues = new double[] { -2.0, 3.0, 4.0, 8.0, 9.1, 10.0, 12.0, 14.0 }; //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double[] yValues = new double[] {11.0, 9.5, 2.0, 1.1, -2.2, -2.6, 2.0, 2.0 }; double[] yValues = new double[] { 11.0, 9.5, 2.0, 1.1, -2.2, -2.6, 2.0, 2.0 }; PiecewisePolynomialInterpolator interp = new PiecewiseCubicHermiteSplineInterpolator(); PiecewisePolynomialResult result = interp.interpolate(xValues, yValues); PiecewisePolynomialFunction1D function = new PiecewisePolynomialFunction1D(); PiecewisePolynomialInterpolator interpPos = new MonotonicityPreservingCubicSplineInterpolator(interp); PiecewisePolynomialResult resultPos = interpPos.interpolate(xValues, yValues); assertEquals(resultPos.Dimensions, result.Dimensions); assertEquals(resultPos.NumberOfIntervals, result.NumberOfIntervals); assertEquals(resultPos.Order, result.Order); for (int i = 2; i < resultPos.NumberOfIntervals - 2; ++i) { for (int j = 0; j < 4; ++j) { assertEquals(resultPos.CoefMatrix.get(i, j), result.CoefMatrix.get(i, j), EPS); } } const int nKeys = 121; double key0 = -2.0; for (int i = 1; i < nKeys; ++i) { //JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final': //ORIGINAL LINE: final double key = -2.0 + 12.0 / (nKeys - 1) * i; double key = -2.0 + 12.0 / (nKeys - 1) * i; assertTrue(function.evaluate(resultPos, key).get(0) - function.evaluate(resultPos, key0).get(0) <= 0.0); key0 = -2.0 + 11.0 / (nKeys - 1) * i; } }