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# scipy.sparse.spfuncs

Functions that operate on sparse matrices

Functions

`count_blocks`(A, blocksize) | For a given blocksize=(r,c) count the number of occupied
`csr_count_blocks`(*args) | csr_count_blocks(int n_row, int n_col, int R, int C, int Ap, int Aj) -> int
`estimate_blocksize`(A[, efficiency]) | Attempt to determine the blocksize of a sparse matrix
`extract_diagonal`(A) |
`isspmatrix_csc`(x) |
`isspmatrix_csr`(x) |

Classes

`csr_matrix`(arg1[, shape, dtype, copy]) | Compressed Sparse Row matrix

### Navigation

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- modules |
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- previous |
- SciPy v0.9 Reference Guide (DRAFT) »
- Sparse matrices (`scipy.sparse`) »