scipy.sparse.hstack¶
- scipy.sparse.hstack(blocks, format=None, dtype=None)[source]¶
Stack sparse matrices horizontally (column wise)
Parameters: blocks
sequence of sparse matrices with compatible shapes
format : str
sparse format of the result (e.g. “csr”) by default an appropriate sparse matrix format is returned. This choice is subject to change.
dtype : dtype, optional
The data-type of the output matrix. If not given, the dtype is determined from that of blocks.
See also
- vstack
- stack sparse matrices vertically (row wise)
Examples
>>> from scipy.sparse import coo_matrix, hstack >>> A = coo_matrix([[1, 2], [3, 4]]) >>> B = coo_matrix([[5], [6]]) >>> hstack([A,B]).toarray() array([[1, 2, 5], [3, 4, 6]])