NumPy sum()

1 개요

NumPy sum()

import numpy as np
a = np.array([[1,2],[3,4]])

print( np.sum(a) )
# 10
print( a.sum() )
# 10

print( a.sum(axis=0) )
# [4 6]
print( a.sum(axis=1) )
# [3 7]

print( a[:, 0].sum(), a[:, 1].sum() )
# 4 6
print( a[0, :].sum(), a[1, :].sum() )
# 3 7

2 같이 보기

• NumPy