efficiently count zero elements in numpy array 3f

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showing results for - "efficiently count zero elements in numpy array 3f"
Assya
23 Oct 2020
1In [3]: arr
2Out[3]: 
3array([[1, 2, 0, 3],
4      [3, 9, 0, 4]])
5
6In [4]: np.count_nonzero(arr==0)
7Out[4]: 2
8
9In [5]:def func_cnt():
10            for arr in arrs:
11                zero_els = np.count_nonzero(arr==0)
12                # here, it counts the frequency of zeroes actually