numpy.ma.make_mask_descr — NumPy v1.13 Manual (original) (raw)

numpy.ma. make_mask_descr(ndtype)[source]¶

Construct a dtype description list from a given dtype.

Returns a new dtype object, with the type of all fields in ndtype to a boolean type. Field names are not altered.

Examples

import numpy.ma as ma dtype = np.dtype({'names':['foo', 'bar'], 'formats':[np.float32, np.int]}) dtype dtype([('foo', '<f4'), ('bar', '<i4')]) ma.make_mask_descr(dtype) dtype([('foo', '|b1'), ('bar', '|b1')]) ma.make_mask_descr(np.float32) dtype('bool')