operations with empty strings | isnumeric () function

Michael Zippo 18.07.2021

numpy.core.defchararray.isnumeric (arr) returns true for each item if there are only numeric characters and 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.isnumeric () method

import numpy as geek

# input array contains only numeric character

in_arr = geek.array ([ ’1000 ’ , ’ 2000’ ])

print ( "Input array:" , in_arr)

out_arr = geek.char.isnumeric (in_arr)

print ( "Output array:" , out_arr)

Output:

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

Code # 2:

       # Python program explaining  
  # numpy.char.isnumeric () method  
   
   import   numpy as geek  
   
  # input array  
   in_arr   =   geek.array ([  ’python3 .5’  ,   ’a1000’  ,   ’1234 ab’  ]) 
   print   (  "Input array:"  , in_arr) 
   
   out_arr   =   geek.char.isnumeric (in_arr) 
   print   (  "Output array:"  , out_arr)

Output:

 Input array: [’python3.5’’ a1000’ ’1234 ab’] Output array: [False False False]

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operations with empty strings | isnumeric () function

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