numpy.core.defchararray.chararray.setfield — NumPy v1.11 Manual (original) (raw)
chararray.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: | val : object Value to be placed in field. dtype : dtype object Data-type of the field in which to place val. offset : int, optional The number of bytes into the field at which to place val. |
|---|---|
| Returns: | None |
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]]) x array([[ 1.00000000e+000, 1.48219694e-323, 1.48219694e-323], [ 1.48219694e-323, 1.00000000e+000, 1.48219694e-323], [ 1.48219694e-323, 1.48219694e-323, 1.00000000e+000]]) x.setfield(np.eye(3), np.int32) x array([[ 1., 0., 0.], [ 0., 1., 0.], [ 0., 0., 1.]])