scipy.linalg.interpolative.reconstruct_matrix_from_id#
- scipy.linalg.interpolative.reconstruct_matrix_from_id(B, idx, proj)[source]#
Reconstruct matrix from its ID.
A matrix A with skeleton matrix B and ID indices and coefficients idx and proj, respectively, can be reconstructed as:
numpy.hstack([B, numpy.dot(B, proj)])[:,numpy.argsort(idx)]
See also
reconstruct_interp_matrix
andreconstruct_skel_matrix
.- Parameters:
- B
numpy.ndarray
Skeleton matrix.
- idx
numpy.ndarray
Column index array.
- proj
numpy.ndarray
Interpolation coefficients.
- B
- Returns:
numpy.ndarray
Reconstructed matrix.