issparse — SciPy v1.15.2 Manual (original) (raw)

scipy.sparse.

scipy.sparse.issparse(x)[source]#

Is x of a sparse array or sparse matrix type?

Parameters:

x

object to check for being a sparse array or sparse matrix

Returns:

bool

True if x is a sparse array or a sparse matrix, False otherwise

Notes

Use isinstance(x, sp.sparse.sparray) to check between an array or matrix. Use a.format to check the sparse format, e.g. a.format == ‘csr’.

Examples

import numpy as np from scipy.sparse import csr_array, csr_matrix, issparse issparse(csr_matrix([[5]])) True issparse(csr_array([[5]])) True issparse(np.array([[5]])) False issparse(5) False