Open In App

numpy string operations | isdigit() function

Improve
Improve
Like Article
Like
Save
Share
Report

numpy.core.defchararray.isdigit(arr) function returns True for each element if all characters in the string are digits and there is at least one character; returns false otherwise.

Parameters:
arr : array_like of str or unicode.

Returns : [ndarray] Output array of bools.

Code #1 :




# Python program explaining
# numpy.char.isdigit() method 
  
import numpy as geek
  
# input array contains only digits
in_arr = geek.array([ '1000', '2000'] )
print ("Input array : ", in_arr) 
  
out_arr = geek.char.isdigit(in_arr)
print ("Output array: ", out_arr)


Output:

Input array :  ['1000' '2000']
Output array:  [ True  True]

 
Code #2 :




# Python program explaining
# numpy.char.isdigit() method 
  
import numpy as geek
  
# input array contains digits along with space and alphabets
in_arr = geek.array([ '1000 2', 'a1000', '1234 ab'] )
print ("Input array : ", in_arr) 
  
out_arr = geek.char.isdigit(in_arr)
print ("Output array: ", out_arr)


Output:

Input array :  ['1000 2' 'a1000' '1234 ab']
Output array:  [False False False]

Last Updated : 14 Jan, 2019
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads