Answers for "count number of instances in a list python"

how to find the number of times a number appears in python

dict((i, a.count(i)) for i in a)

Posted by: Guest on February-24-2020

count occurrence in array python

arr = np.array( [1, 2, 3, 2, 1, 2])
occ = np.count_nonzero(arr==0)
print(occ)
0
occ = np.count_nonzero(arr==1)
print(occ)
2

Posted by: Guest on August-17-2020

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