/// <summary>
/// Returns the transposed coordinate storage.
/// </summary>
/// <param name="alloc">If true, clone storage arrays, otherwise just swap the references and re-use the arrays.</param>
/// <returns>The transposed storage.</returns>
public CoordinateStorage <T> Transpose(bool alloc = false)
{
var result = new CoordinateStorage <T>(ncols, nrows, nzmax, alloc);
result.nz = nz;
result.nzmax = nzmax;
// Transposing is just a matter of switching row and column indices.
if (alloc)
{
Array.Copy(rowind, result.colind, nz);
Array.Copy(colind, result.rowind, nz);
Array.Copy(values, result.values, nz);
}
else
{
result.rowind = colind;
result.colind = rowind;
result.values = values;
}
return(result);
}
/// <summary>
/// Create a new sparse matrix as a copy of the given coordinate storage.
/// </summary>
public static CompressedColumnStorage <T> OfIndexed(CoordinateStorage <T> coordinateStorage)
{
return(Converter.ToCompressedColumnStorage(coordinateStorage));
}
/// <summary>
/// Create a new sparse matrix as a copy of the given coordinate storage.
/// </summary>
public static CompressedColumnStorage <T> OfIndexed(CoordinateStorage <T> coordinateStorage, bool inplace = false)
{
return(Converter.ToCompressedColumnStorage_(coordinateStorage, true, inplace));
}