numpy string operations | upper() function

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:

# Python Program explaining
# numpy.char.upper() function

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:

# Python Program explaining
# numpy.char.upper() function

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']