bundles / scipy 1.17.1 / scipy / linalg / interpolative / reconstruct_interp_matrix
function
scipy.linalg.interpolative:reconstruct_interp_matrix
Signature
def reconstruct_interp_matrix ( idx , proj ) Summary
Reconstruct interpolation matrix from ID.
Extended Summary
The interpolation matrix can be reconstructed from the ID indices and coefficients idx and proj, respectively, as
P = numpy.hstack([numpy.eye(proj.shape[0]), proj])[:,numpy.argsort(idx)]The original matrix can then be reconstructed from its skeleton matrix B via A = B @ P
See also reconstruct_matrix_from_id and reconstruct_skel_matrix.
Parameters
idx: :class:`numpy.ndarray`1D column index array.
proj: :class:`numpy.ndarray`Interpolation coefficients.
Returns
: :class:`numpy.ndarray`Interpolation matrix.
Aliases
-
scipy.linalg.interpolative.reconstruct_interp_matrix