//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testNullTransform()
public virtual void testNullTransform()
{
BitArray @fixed = new BitArray();
@fixed.Set(0, true);
DoubleArray start = DoubleArray.of(Math.PI / 4, 1);
UncoupledParameterTransforms transforms = new UncoupledParameterTransforms(start, NULL_TRANSFORMS, @fixed);
NonLinearTransformFunction transFunc = new NonLinearTransformFunction(FUNCTION, JACOBIAN, transforms);
System.Func <DoubleArray, DoubleArray> func = transFunc.FittingFunction;
System.Func <DoubleArray, DoubleMatrix> jacFunc = transFunc.FittingJacobian;
DoubleArray x = DoubleArray.of(0.5);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double rootHalf = Math.sqrt(0.5);
double rootHalf = Math.Sqrt(0.5);
DoubleArray y = func(x);
assertEquals(3, y.size());
assertEquals(rootHalf * Math.Cos(0.5), y.get(0), 1e-9);
assertEquals(rootHalf * Math.Sin(0.5), y.get(1), 1e-9);
assertEquals(rootHalf, y.get(2), 1e-9);
DoubleMatrix jac = jacFunc(x);
assertEquals(3, jac.rowCount());
assertEquals(1, jac.columnCount());
assertEquals(-rootHalf * Math.Sin(0.5), jac.get(0, 0), 1e-9);
assertEquals(rootHalf * Math.Cos(0.5), jac.get(1, 0), 1e-9);
assertEquals(0, jac.get(2, 0), 1e-9);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testNonLinearTransform()
public virtual void testNonLinearTransform()
{
BitArray @fixed = new BitArray();
DoubleArray start = DoubleArray.filled(2);
UncoupledParameterTransforms transforms = new UncoupledParameterTransforms(start, TRANSFORMS, @fixed);
NonLinearTransformFunction transFunc = new NonLinearTransformFunction(FUNCTION, JACOBIAN, transforms);
System.Func <DoubleArray, DoubleArray> func = transFunc.FittingFunction;
System.Func <DoubleArray, DoubleMatrix> jacFunc = transFunc.FittingJacobian;
VectorFieldFirstOrderDifferentiator diff = new VectorFieldFirstOrderDifferentiator();
System.Func <DoubleArray, DoubleMatrix> jacFuncFD = diff.differentiate(func);
DoubleArray testPoint = DoubleArray.of(4.5, -2.1);
DoubleMatrix jac = jacFunc(testPoint);
DoubleMatrix jacFD = jacFuncFD(testPoint);
assertEquals(3, jac.rowCount());
assertEquals(2, jac.columnCount());
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 2; j++)
{
assertEquals(jacFD.get(i, j), jac.get(i, j), 1e-6);
}
}
}
public FuncAnonymousInnerClass2(NonLinearTransformFunction outerInstance, System.Func <DoubleArray, DoubleMatrix> jac)
{
this.outerInstance = outerInstance;
this.jac = jac;
}
public FuncAnonymousInnerClass(NonLinearTransformFunction outerInstance, System.Func <DoubleArray, DoubleArray> func)
{
this.outerInstance = outerInstance;
this.func = func;
}
