spmatrix#
- class scipy.sparse.spmatrix[source]#
- This class provides a base class for all sparse matrix classes. - It cannot be instantiated. Most of the work is provided by subclasses. - Attributes:
- shape
- Shape of the matrix 
 
 - Methods - __mul__(other)- asfptype()- Upcast matrix to a floating point format (if necessary) - getH()- Return the Hermitian transpose of this matrix. - Get the shape of the matrix - getcol(j)- Returns a copy of column j of the matrix, as an (m x 1) sparse matrix (column vector). - Matrix storage format - Maximum number of elements to display when printed. - getnnz([axis])- Number of stored values, including explicit zeros. - getrow(i)- Returns a copy of row i of the matrix, as a (1 x n) sparse matrix (row vector). - set_shape(shape)- Set the shape of the matrix in-place - todense([order, out])- Return a dense representation of this sparse matrix.