public static DMatrixSparseTriplet convert(DMatrix src, DMatrixSparseTriplet dst, double tol)
{
if (dst == null)
{
dst = new DMatrixSparseTriplet(src.getNumRows(), src.getNumCols(), 1);
}
else
{
dst.reshape(src.getNumRows(), src.getNumCols());
}
for (int row = 0; row < src.getNumRows(); row++)
{
for (int col = 0; col < src.getNumCols(); col++)
{
double value = src.unsafe_get(row, col);
if (Math.Abs(value) > tol)
{
dst.addItem(row, col, value);
}
}
}
return(dst);
}
/**
* Generic, but slow, conversion function.
*
* @param input Input matrix.
* @param output Output matrix.
*/
public static void convert(DMatrix input, DMatrix output)
{
if (output is ReshapeMatrix)
{
((ReshapeMatrix)output).reshape(input.NumRows, input.NumCols);
}
else
{
if (input.NumRows != output.NumRows)
{
throw new ArgumentException("Number of rows do not match");
}
if (input.NumCols != output.NumCols)
{
throw new ArgumentException("Number of columns do not match");
}
}
for (int i = 0; i < input.NumRows; i++)
{
for (int j = 0; j < input.NumCols; j++)
{
output.unsafe_set(i, j, input.unsafe_get(i, j));
}
}
}
/**
* Generic, but slow, conversion function.
*
* @param input Input matrix.
* @param output Output matrix.
*/
public static void convert(DMatrix input, DMatrix output)
{
if (input.getNumRows() != output.getNumRows())
{
throw new ArgumentException("Number of rows do not match");
}
if (input.getNumCols() != output.getNumCols())
{
throw new ArgumentException("Number of columns do not match");
}
for (int i = 0; i < input.getNumRows(); i++)
{
for (int j = 0; j < input.getNumCols(); j++)
{
output.unsafe_set(i, j, input.unsafe_get(i, j));
}
}
}