python-numpyGet array mean along an axis

import numpy as np
arr = np.array([[1, 2], [3, 4]])
mean = np.mean(arr,axis=1)ctrl + cyoutubegithub

`import numpy as np` load Numpy module for Python	`np.array` declare Numpy array
`[[1, 2], [3, 4]]` sample matrix data	`np.mean` returns given array mean
`axis=1` returns array of mean values along horizontal axis (use `axis=0` to get mean values along vertical axis)

import numpy as np
arr = np.array([[1, 2], [3, 4]])
mean = np.mean(arr,axis=1)
print(arr)
print(mean)

[[1 2]
 [3 4]]
[1.5 3.5]