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

Last Updated : 14 Jan, 2019

numpy.core.defchararray.upper(arr): function is used to return an array with the elements converted to uppercase.

Parameters:
arr : [ array_like ] Input array which may be str or unicode.

Returns : [ndarray] Output uppercased array of str or unicode, depending on input type.

Code #1:

import numpy as geek

in_arr = geek.array([ 'p4q r' , '4q rp' , 'q rp4' , 'rp4q' ])

print ( "input array : " , in_arr)

out_arr = geek.char.upper(in_arr)

print ( "output uppercased array :" , out_arr)

Output:

input array : ['p4q r' '4q rp' 'q rp4' 'rp4q'] output uppercased array : ['P4Q R' '4Q RP' 'Q RP4' 'RP4Q']

Code #2:

import numpy as geek

in_arr = geek.array([ 'geeks' , 'for' , 'geeks' ])

print ( "input array : " , in_arr)

out_arr = geek.char.upper(in_arr)

print ( "output uppercased array :" , out_arr )

Output:

input array : ['geeks' 'for' 'geeks'] output uppercased array : ['GEEKS' 'FOR' 'GEEKS']

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