numpy.matrix.setfield#
method
- matrix.setfield(val, dtype, offset=0)#
Put a value into a specified place in a field defined by a data-type.
Place val into a’s field defined by
dtype
and beginning offset bytes into the field.- Parameters
- valobject
Value to be placed in field.
- dtypedtype object
Data-type of the field in which to place val.
- offsetint, optional
The number of bytes into the field at which to place val.
- Returns
- None
See also
Examples
>>> x = np.eye(3) >>> x.getfield(np.float64) array([[1., 0., 0.], [0., 1., 0.], [0., 0., 1.]]) >>> x.setfield(3, np.int32) >>> x.getfield(np.int32) array([[3, 3, 3], [3, 3, 3], [3, 3, 3]], dtype=int32) >>> x array([[1.0e+000, 1.5e-323, 1.5e-323], [1.5e-323, 1.0e+000, 1.5e-323], [1.5e-323, 1.5e-323, 1.0e+000]]) >>> x.setfield(np.eye(3), np.int32) >>> x array([[1., 0., 0.], [0., 1., 0.], [0., 0., 1.]])