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

Last Updated : 14 Jan, 2019

numpy.core.defchararray.isdecimal(arr) function returns True for each element if there are only decimal characters in the element.It 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.isdecimal() 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.isdecimal(in_arr) print ("Output array: ", out_arr)

`

Output:

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

Code #2 :

Python3 `

Python program explaining

numpy.char.isdecimal() 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.isdecimal(in_arr) print ("Output array: ", out_arr)

`

Output:

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