private static void SetEntries(CoordinatesKeyedSparseMatrix <int> matrix, int x, int y, bool directed)
{
if (!directed)
{
throw new InvalidOperationException("Undirected edges are not supported.");
}
matrix.AddOrUpdate((y, y), 1, (k, v) => v + 1);
}
private static void SetEntries(CoordinatesKeyedSparseMatrix <int> matrix, int x, int y, int value, bool directed)
{
if (x == y)
{
throw new InvalidOperationException("Loops are not supported.");
}
if (directed)
{
throw new InvalidOperationException("Directed edges are not supported.");
}
matrix.TryAdd((x, y), value);
matrix.TryAdd((y, x), value);
}
public (CoordinatesKeyedSparseMatrix <int>, List <int>, List <List <int> >, MatrixLinearIndexMode) TestMatrixToCVSCMOData()
{
CoordinatesKeyedSparseMatrix <int> sm = TestSparseMatrixData();
List <int> v = new List <int> {
1
};
List <List <int> > li = new List <List <int> >()
{
new List <int> {
4, 5, 11, 17, 23
}
};
return(sm, v, li, MatrixLinearIndexMode.ColumnMajorOrder);
}
public (CoordinatesKeyedSparseMatrix <int>, List <int>, List <List <int> >, MatrixLinearIndexMode) TestMatrixToCVSRMOData()
{
CoordinatesKeyedSparseMatrix <int> sm = TestSparseMatrixData();
List <int> v = new List <int> {
1
};
List <List <int> > li = new List <List <int> >()
{
new List <int> {
1, 7, 13, 19, 20
}
};
return(sm, v, li, MatrixLinearIndexMode.RowMajorOrder);
}
public (CoordinatesKeyedSparseMatrix <int>, List <int>, List <int>, List <int>) TestMatrixToCCSData()
{
CoordinatesKeyedSparseMatrix <int> sm = TestSparseMatrixData();
List <int> v = new List <int> {
1, 1, 1, 1, 1
};
List <int> cp = new List <int> {
0, 1, 2, 3, 4, 5
};
List <int> ri = new List <int> {
4, 0, 1, 2, 3
};
return(sm, v, cp, ri);
}
public (CoordinatesKeyedSparseMatrix <int>, List <int>, List <int>, List <int>) TestMatrixToCRSData()
{
CoordinatesKeyedSparseMatrix <int> sm = TestSparseMatrixData();
List <int> v = new List <int> {
1, 1, 1, 1, 1
};
List <int> rp = new List <int> {
0, 1, 2, 3, 4, 5
};
List <int> ci = new List <int> {
1, 2, 3, 4, 0
};
return(sm, v, rp, ci);
}
public static (CoordinatesKeyedSparseMatrix <int> sm, int[] v, int[] a) TestSparseMatrixVectorMultiplicationData()
{
CoordinatesKeyedSparseMatrix <int> sm = TestSparseMatrixData();
int[] v = new int[] { 2, 0, 5, 0, 1 };
int[] a = { 0, 5, 0, 1, 2 }; // expected product
/*
* 0 1 0 0 0 2 0
* 0 0 1 0 0 0 5
* 0 0 0 1 0 x 5 = 0
* 0 0 0 0 1 0 1
* 1 0 0 0 0 1 2
*/
return(sm, v, a);
}
