### Navigation

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

# scipy.sparse.compressed

Base class for sparse matrix formats using compressed storage

Functions

`getdtype`(dtype[, a, default]) | Function used to simplify argument processing.
`isdense`(x) |
`isintlike`(x) | Is x appropriate as an index into a sparse matrix? Returns True
`isscalarlike`(x) | Is x either a scalar, an array scalar, or a 0-dim array?
`isshape`(x) | Is x a valid 2-tuple of dimensions?
`isspmatrix`(x) |
`to_native`(A) |
`upcast`(*args) | Returns the nearest supported sparse dtype for the combination of one or more types.
`warn`(message[, category, stacklevel]) | Issue a warning, or maybe ignore it or raise an exception.

Classes

`spmatrix`([maxprint]) | This class provides a base class for all sparse matrices.

Exceptions

`SparseEfficiencyWarning` |

### Navigation

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