randn() numpy array code example
Example 1: random array numpy
>>> np.random.rand(3,2)
array([[ 0.14022471, 0.96360618],
[ 0.37601032, 0.25528411],
[ 0.49313049, 0.94909878]])
>>> np.random.random_integers(low=0, high=9, size=(3,2))
array([[2, 3],
[2, 3],
[6, 3]])
Example 2: np.random.randn()
>>> 2.5 * np.random.randn(2, 4) + 3
array([[-4.49401501, 4.00950034, -1.81814867, 7.29718677], #random
[ 0.39924804, 4.68456316, 4.99394529, 4.84057254]]) #random