Classe « spmatrix »

Méthode scipy.sparse.spmatrix.astype

Signature de la méthode astype

def astype(self, dtype, casting='unsafe', copy=True) 

Description

astype.__doc__

Cast the matrix elements to a specified type.

        Parameters
        ----------
        dtype : string or numpy dtype
            Typecode or data-type to which to cast the data.
        casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional
            Controls what kind of data casting may occur.
            Defaults to 'unsafe' for backwards compatibility.
            'no' means the data types should not be cast at all.
            'equiv' means only byte-order changes are allowed.
            'safe' means only casts which can preserve values are allowed.
            'same_kind' means only safe casts or casts within a kind,
            like float64 to float32, are allowed.
            'unsafe' means any data conversions may be done.
        copy : bool, optional
            If `copy` is `False`, the result might share some memory with this
            matrix. If `copy` is `True`, it is guaranteed that the result and
            this matrix do not share any memory.