/Python/Efficiently count zero elements in numpy array?

Efficiently count zero elements in numpy array?

In [3]: arr
Out[3]: 
array([[1, 2, 0, 3],
      [3, 9, 0, 4]])

In [4]: np.count_nonzero(arr==0)
Out[4]: 2

In [5]:def func_cnt():
            for arr in arrs:
                zero_els = np.count_nonzero(arr==0)
                # here, it counts the frequency of zeroes actually

Source: stackoverflow.com

Similar codes

0 vote201 views1 answer
Python censoring pypi
Python
6 votes187 views2 answers
Horizontal line matplotlib python
Python
0 vote208 views1 answer
Python string to operator
Python
-1 vote209 views1 answer
How to make a variable in python 3
Python
2 votes190 views2 answers
Numpy remove object from array
Python
0 vote171 views1 answer
Doc2text python example
Python
0 vote199 views1 answer
Como tornar uma string numa lista
Python
0 vote203 views1 answer
All the symbols on a keyboard python list
Python
1 vote211 views3 answers
How to add items to tuple in python
Python
0 vote206 views1 answer
3d array
Python