基于numpy.random.randn()与rand()的区别详解

import numpy as np arr1 = np.random.randn(2,4)print(arr1)print('******************************************************************')arr2 = np.random.rand(2,4)print(arr2)

[[-1.03021018 0.5197033 0.52117459 -0.70102661] [ 0.98268569 1.21940697 -1.095241 -0.38161758]]******************************************************************[[ 0.19947349 0.05282713 0.56704222 0.45479972] [ 0.28827103 0.1643551 0.30486786 0.56386943]]