`numpy.ma.core:make_mask_none`

source: build-install/usr/lib/python3.14/site-packages/numpy/ma/core.py :1687

Signature

def make_mask_none ( newshape , dtype = None )

Summary

Return a boolean mask of the given shape, filled with False.

Extended Summary

This function returns a boolean ndarray with all entries False, that can be used in common mask manipulations. If a complex dtype is specified, the type of each field is converted to a boolean type.

Parameters

newshape : tuple: A tuple indicating the shape of the mask.
dtype : {None, dtype}, optional: If None, use a MaskType instance. Otherwise, use a new datatype with the same fields as dtype, converted to boolean types.

Returns

result : ndarray: An ndarray of appropriate shape and dtype, filled with False.

Examples

import numpy as np
import numpy.ma as ma
ma.make_mask_none((3,))

Defining a more complex dtype.

dtype = np.dtype({'names':['foo', 'bar'],
                  'formats':[np.float32, np.int64]})
dtype
ma.make_mask_none((3,), dtype=dtype)

Aliases

numpy.ma.make_mask_none