numpy.ma.make_mask_descr
- 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.- Parameters
-
- ndtype dtype
-
The dtype to convert.
- Returns
-
- result dtype
-
A dtype that looks like
ndtype
, the type of all fields is boolean.
Examples
>>> import numpy.ma as ma >>> dtype = np.dtype({'names':['foo', 'bar'], ... 'formats':[np.float32, np.int64]}) >>> dtype dtype([('foo', '<f4'), ('bar', '<i8')]) >>> ma.make_mask_descr(dtype) dtype([('foo', '|b1'), ('bar', '|b1')]) >>> ma.make_mask_descr(np.float32) dtype('bool')
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https://numpy.org/doc/1.22/reference/generated/numpy.ma.make_mask_descr.html