Answers for "count the number of an element in a NUMPY python"

np array value count

unique_elements, counts_elements = np.unique(a, return_counts=True)

Posted by: Guest on September-24-2020

count values in numpy list python

>>> import numpy
>>> y = np.array([1, 2, 2, 2, 2, 0, 2, 3, 3, 3, 2, 2])

>>> numpy.count_nonzero(y == 1)
1
>>> numpy.count_nonzero(y == 2)
7
>>> numpy.count_nonzero(y == 3)
3

Posted by: Guest on March-03-2021

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