numpy.ma.choose() function - Python

Syntax : numpy.ma.choose(arr, choices, out = None, mode = 'raise') Parameters : arr : [ndarray of ints] This array must contain integers in [0, n-1], where n is the number of choices. choices : [sequence of arrays] Choice arrays. The index array and all of the choices should be broadcastable to the same shape. out : [array, optional] If provided, the result will be inserted into this array. It should be of the appropriate shape and dtype. mode : [{‘raise’, ‘wrap’, ‘clip’}, optional] Specifies how out-of-bounds indices will behave. ‘raise’: raise an error. ‘wrap’: wrap around. ‘clip’: clip to the range. Return : A new array that merges each of the choice arrays.

# Python program explaining
# numpy.ma.choose() function
  
# importing numpy as geek   
# and numpy.ma module as ma  
import numpy as geek  
import numpy.ma as ma
 
choice = geek.array([[1, 1, 1], [2, 2, 2], [3, 3, 3]])
arr = geek.array([2, 1, 0])

gfg = geek.ma.choose(arr, choice)

print (gfg)

[3 2 1]

# Python program explaining
# numpy.ma.choose() function
  
# importing numpy as geek   
# and numpy.ma module as ma  
import numpy as geek  
import numpy.ma as ma
 
choice = geek.array([[1, 1, 1], [2, 2, 2], [3, 3, 3]])
arr = geek.array([0, 1, 2])

gfg = geek.ma.choose(arr, choice)

print (gfg)

[1 2 3]