numpy string operations | isdigit() function

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 : Python3

# 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)

  Code #2 : Python3

# 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)