How to create random array in NumPy

You can create random array in NumPy with the following code. If you want to learn Python then I will highly recommend you to read This Book.

Example 1: Create 1d Random Array

It will create a 1d random array of 4 integers and the maximum integer limit is 50. The output will be different everytime because it is random generation.

from numpy import random

a=random.randint(50, size=(4))

print(a)

[45 49 40 16]

Example 2: Create 2d Random Array

from numpy import random

a = random.randint(50, size=(2, 4))

print(a)

[[43  1 48  1]
 [ 4 41  4 21]]

Example 3: (Float 1d Random Array)

It will create a 1d random array with 6 floating numbers. Every number will be in between 0 and 1.

from numpy import random

a = random.rand(6)

print(a)

[0.61470267 0.35447488 0.07999328 0.53609936 0.27370695 0.64716377]

Example 4: (Float 2d Random Array)

from numpy import random

a = random.rand(4, 3)

print(a)

[[9.49824158e-01 8.92868712e-01 2.81350709e-01]
 [9.41218138e-01 8.30483746e-01 5.67658690e-04]
 [4.70797102e-01 8.49414115e-01 3.78735775e-03]
 [1.46419094e-01 5.67291743e-01 9.74043337e-01]]