Numpy element sum privous

>>> a
array([[1, 2, 3],
       [4, 5, 6]])
       
>>> np.cumsum(a,axis=0)      # sum over rows for each of the 3 columns
array([[1, 2, 3],
       [5, 7, 9]])
>>> np.cumsum(a,axis=1)      # sum over columns for each of the 2 rows
array([[ 1,  3,  6],
       [ 4,  9, 15]])

Source: numpy.org

Similar codes

2 votes165 views2 answers
Pandas update with condition
Python
7 votes177 views3 answers
Np array to df
Python
2 votes166 views2 answers
Python replace newline
Python
0 vote176 views1 answer
How to return number in binary python
Python
0 vote161 views1 answer
Python change all values in nested list
Python
0 vote154 views1 answer
Python get the last element from the list
Python
8 votes161 views2 answers
List of single item repeated python
Python
0 vote174 views2 answers
How to create a leaderboard on python 3.8.1
Python
0 vote169 views1 answer
Python run things at certain datetimes
Python
2 votes152 views1 answer
Add values to tuple python
Python