/Python/Count how much a number is in an array python

Count how much a number is in an array python

Count values in array python

a = numpy.array([0, 3, 0, 1, 0, 1, 2, 1, 0, 0, 0, 0, 1, 3, 4])
unique, counts = numpy.unique(a, return_counts=True)
dict(zip(unique, counts))

# {0: 7, 1: 4, 2: 1, 3: 2, 4: 1}

Source: stackoverflow.com

Python count of values in array

import numpy as np
y = np.array([0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1])
num_zeros = (y == 0).sum()
num_ones = (y == 1).sum()

Source: stackoverflow.com

Count how much a number is in an array python

# Our array
arr = [82, 49, 82, 82, 41, 82, 15, 63, 38, 25]

# let's print the number of 82 in our array/list
print(arr.count(82))

# it will print : 4

Similar codes

0 vote94 views1 answer
Uniqe points in a column pandas
Python
11 votes85 views6 answers
Curl to python
Python
0 vote94 views2 answers
Asdfghjkl
Python
6 votes61 views2 answers
Django queryset get all distinct
Python
24 votes104 views6 answers
Python remove white space
Python
3 votes84 views1 answer
Pandas remove char from column
Python
0 vote86 views1 answer
Networkx largest component
Python
89 votes52 views6 answers
Int to string python
Python
4 votes91 views2 answers
Queue python
Python
-4 votes85 views4 answers
Python 3.2 release date
Python