scipy.sparse.find#
- scipy.sparse.find(A)[source]#
Return the indices and values of the nonzero elements of a matrix
- Parameters
- Adense or sparse matrix
Matrix whose nonzero elements are desired.
- Returns
- (I,J,V)tuple of arrays
I,J, and V contain the row indices, column indices, and values of the nonzero matrix entries.
Examples
>>> from scipy.sparse import csr_matrix, find >>> A = csr_matrix([[7.0, 8.0, 0],[0, 0, 9.0]]) >>> find(A) (array([0, 0, 1], dtype=int32), array([0, 1, 2], dtype=int32), array([ 7., 8., 9.]))