numpy string operations | join() function (original) (raw)

Last Updated : 05 Feb, 2019

numpy.core.defchararray.join(sep, arr) is another function for doing string operations in numpy. For each element in arr, it returns a copy of the string in which the string elements of array have been joined by separator.

Parameters:
sep : It joins elements with the string between them.
**arr :**Input array.

Returns : Output array of str or unicode with joined elements.

Code #1 :

import numpy as geek

in_arr = geek.array([ 'Python' , 'Numpy' , 'Pandas' ])

print ( "Input original array : " , in_arr)

sep = geek.array([ '-' , '+' , '*' ])

out_arr = geek.core.defchararray.join(sep, in_arr)

print ( "Output joined array: " , out_arr)

Output:

Input original array : ['Python' 'Numpy' 'Pandas'] Output joined array: ['P-y-t-h-o-n' 'N+u+m+p+y' 'Panda*s']

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