place(arr, mask, vals)
Similar to np.copyto(arr, vals, where=mask)
, the difference is that place
uses the first N elements of :None:None:`vals`, where N is the number of True values in :None:None:`mask`, while copyto
uses the elements where :None:None:`mask` is True.
Note that extract
does the exact opposite of place
.
Array to put data into.
Boolean mask array. Must have the same size as a.
Values to put into a. Only the first N elements are used, where N is the number of True values in :None:None:`mask`. If :None:None:`vals` is smaller than N, it will be repeated, and if elements of a are to be masked, this sequence must be non-empty.
Change elements of an array based on conditional and input values.
>>> arr = np.arange(6).reshape(2, 3)See :
... np.place(arr, arr>2, [44, 55])
... arr array([[ 0, 1, 2], [44, 55, 44]])
The following pages refer to to this document either explicitly or contain code examples using this.
numpy.extract
numpy.put
numpy.place
numpy.core._multiarray_umath.putmask
numpy.putmask
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