public void EmptyMatrixCreationAndCheck()
{
// CHeck Matrix Factory
SparseMatrix mat = SparseMatrixFactory.CreateMatrix(10, 100);
Assert.Equal(mat.RowCount(), 10);
Assert.Equal(mat.ColCount(), 100);
Assert.Equal(mat.At(0, 0), 0.0D);
Assert.Throws <ArgumentOutOfRangeException>(() => mat.At(11, 11));
Assert.Throws <ArgumentOutOfRangeException>(() => mat.At(-1, 11));
Assert.Throws <ArgumentOutOfRangeException>(() => mat.At(0, 101));
Assert.Throws <ArgumentOutOfRangeException>(() => mat.At(11, -1));
}
public void MatrixCheck(SparseMatrix sm)
{
Assert.Equal(sm.RowCount(), 10);
Assert.Equal(sm.ColCount(), 100);
Assert.Equal(sm.At(0, 0), 0.0D);
Assert.Throws <ArgumentOutOfRangeException>(() => sm.At(11, 11));
Assert.Throws <ArgumentOutOfRangeException>(() => sm.At(-1, 11));
Assert.Throws <ArgumentOutOfRangeException>(() => sm.At(0, 101));
Assert.Throws <ArgumentOutOfRangeException>(() => sm.At(11, -1));
// Set Values and Retrieve
sm.At(9, 9, 10.0);
Assert.Equal(10.0D, sm.At(9, 9));
Assert.Equal(0.0D, sm.At(9, 10));
// Transpose Checks
sm.At(2, 11, 11.0);
SparseMatrix t = sm.Transpose();
Assert.Equal(10.0D, t.At(9, 9));
Assert.Equal(0.0D, t.At(9, 10));
Assert.Equal(11.0D, t.At(11, 2));
Assert.Equal(10, t.ColCount());
Assert.Equal(100, t.RowCount());
// Calculations Check: dot, axpy
double[] w = new double[100];
for (int i = 0; i < 10; i++)
{
sm.At(1, i, (double)i + 1);
w[i] = (double)10 - i;
}
w[10] = 40.0;
// nrm2_sq
Assert.Equal(385, sm.nrm2_sq(1));
// dot
Assert.Equal(220, sm.dot(1, w));
sm.At(1, 10, 1);
Assert.Equal(260, sm.dot(1, w));
// axpy(double a, int row, double[] y)
for (int i = 0; i < 100; i++)
{
w[i] = 0;
}
sm.axpy(10, 1, w);
Assert.Equal(30, w[2]);
Assert.Equal(10, w[10]);
Assert.Equal(0, w[11]);
// IEnumerable<SparseRowValue> getRow(int row);
IEnumerable <SparseRowValue> vr = sm.getRow(1);
int k = 0;
foreach (SparseRowValue sr in vr)
{
k++;
}
Assert.Equal(11, k);
vr = sm.getRow(7);
k = 0;
foreach (SparseRowValue sr in vr)
{
k++;
}
Assert.Equal(0, k);
// public RowArrayPtr<SparseRowValue> getRowPtr(int row)
RowArrayPtr <SparseRowValue> rowPtr = sm.getRowPtr(1);
Assert.Equal(11, rowPtr.Length);
rowPtr = sm.getRowPtr(7);
Assert.Equal(0, rowPtr.Length);
SparseMatrix cpSm = (SparseMatrix)Activator.CreateInstance(sm.GetType(), new object[] { sm.RowCount(), sm.ColCount() });
cpSm.CopyRow(3, sm, 1);
Assert.Equal(cpSm.RowCount(), 10);
Assert.Equal(cpSm.ColCount(), 100);
Assert.Equal(cpSm.At(0, 0), 0.0D);
rowPtr = cpSm.getRowPtr(3);
Assert.Equal(11, rowPtr.Length);
Assert.Equal(386, cpSm.nrm2_sq(3));
// TODO: LoadRow.
}
public int ColCount()
{
return(readOnlyMatrix.ColCount());
}
