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Random sampling in numpy | sample() function

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In Python numpy.random.sample() is one of the functionsgenerate that generates floating-point values in an open interval [0.0,1.0). It doesn’t take up any arguments and produces a single random value each time it’s called. This function is often used for statistical and simulation tasks in Python.

Syntax : numpy.random.sample(size=None)

Parameters:
size : [int or tuple of ints, optional] Output shape. If the given shape is, e.g., (m, n, k), then m * n * k samples are drawn. Default is None, in which case a single value is returned.

Return: Array of random floats in the interval [0.0, 1.0). or a single such random float if size not provided.

Example 1: Random Sampling for 1D Array

In Example 1, It prints the random float value in the range between [0.0, 1.0) in a 1D Array.

Python3

# Python program explaining
# numpy.random.sample() function
 
# importing numpy
import numpy as geek
 
# output random value
out_val = geek.random.sample()
print("Output random value : ", out_val)

                    

Output:

Output random value :  0.48333001584192203

Example 2: Random Sampling for 2D Array

In Example 2, It will print a 2D array in range [0.0, 1.0) and size represents the dimensions of the array, i.e., 3,3.

Python3

# Python program explaining
# numpy.random.sample() function
 
# importing numpy
import numpy as geek
 
 
# output array
out_arr = geek.random.sample(size=(3, 3))
print("Output 2D Array filled with random floats : ", out_arr)

                    

Output:

Output 2D Array filled with random floats :  [[0.88080589 0.6975613  0.24834172]
 [0.7624025  0.57821126 0.16190988]
 [0.19641213 0.98098179 0.7861734 ]]

Example 3: Random Sampling for 3D Array

In Example 3, it will print a 3D array in range of [0.0,1.0) and the dimensions provide for array are 2,2,3.

Python3

# Python program explaining
# numpy.random.sample() function
 
# importing numpy
import numpy as geek
 
# output array
out_arr = geek.random.sample((2, 2, 3))
print("Output 3D Array filled with random floats : ", out_arr)

                    

Output:

Output 3D Array filled with random floats :  [[[0.46531776 0.12490349 0.4788548 ]
  [0.17803379 0.46658566 0.42292984]]
 [[0.00454164 0.07650314 0.43976311]
  [0.11644706 0.52697036 0.11542112]]]




Last Updated : 28 Aug, 2023
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