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NumPy Exercises

NumPy: Save a given array to a text file and load it

NumPy: Basic Exercise-37 with Solution

Write a NumPy program to save a given array to a text file and load it.

Sample Solution :

Python Code :

import numpy as np
import os
x = np.arange(12).reshape(4, 3)
print("Original array:")
print(x)
header = 'col1 col2 col3'
np.savetxt('temp.txt', x, fmt="%d", header=header) 
print("After loading, content of the text file:")
result = np.loadtxt('temp.txt')
print(result)

Sample Output:

Original array:
[[ 0  1  2]
 [ 3  4  5]
 [ 6  7  8]
 [ 9 10 11]]
After loading, content of the text file:
[[  0.   1.   2.]
 [  3.   4.   5.]
 [  6.   7.   8.]
 [  9.  10.  11.]]                         

Pictorial Presentation:

NumPy: Save a given array to a text file and load it.

Python Code Editor:


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