numpy.char.multiply() function in Python

The multiply() method of the char class in the NumPy module is used for element-wise string multiple concatenation.

numpy.char.multiply()

Syntax : numpy.char.multiply(a, i)
Parameters :

  • a : array of str or unicode
  • i : number of times to be repeated

Returns : Array of strings

Example 1 : Using the method on a single element string array.

Python3




# importing the module
import numpy as np
  
# created an array
arr1 = np.array(['Beginner'])
print("Original Array :")
print(arr1)
  
# number of times to be repeated
i = 3
  
# using the char.multiply() method
arr2 = np.char.multiply(arr1, i)
print("\nNew array :")
print(arr2)


Output :

Original Array :
['Beginner']

New array :
['BeginnerBeginnerBeginner']

Example 2 : Using the method on multiple elements string array.

Python3




# importing the module
import numpy as np
  
# created an array
arr1 = np.array(['Beginner', 'for', 'Beginner'])
print("Original Array :")
print(arr1)
  
# number of times to be repeated
i = 2
  
# using the char.multiply() method
arr2 = np.char.multiply(arr1, i)
print("\nNew array :")
print(arr2)


Output :

Original Array :
['Beginner' 'for' 'Beginner']

New array :
['BeginnerBeginner' 'forfor' 'BeginnerBeginner']