This is documentation for an old release of SciPy (version 1.7.0). Read this page in the documentation of the latest stable release (version 1.15.0).

scipy.sparse.spmatrix.tobsr

spmatrix.tobsr(blocksize=None, copy=False)[source]

Convert this matrix to Block Sparse Row format.

With copy=False, the data/indices may be shared between this matrix and the resultant bsr_matrix.

When blocksize=(R, C) is provided, it will be used for construction of the bsr_matrix.