numpy.alen () in Python

numpy.alen() is used to return the length of the first dimension of the input array.

Syntax: numpy.alen (arr)

Parameters:
arr: [array_like] Input array.

Return: [int] Length of the first dimension of arr.

Code # 1:

# Python program explaining
the # alen () function

import numpy as geek

# input array (2 * 3)

in_arr = geek.array ([[ 2 , 0 , 7 ], [ 0 , 5 , 9 ]])

   print   (  "Input array:"  , in_arr) 
    
   out_dim   =   geek.alen (in_arr) 
   print   (  "Length of the first dimension of arr:"  , out_dim)

Output:

 Input array: [[2 , 0, 7], [0, 5, 9]] Length of the first dimension of arr: 2

Code # 2:

 
       # Python program explaining  
  # alen () function  
    
   import   numpy as geek 
   
  # input array (1 * 3 * 3)  
   in_arr   =   geek.arange (  9  ). reshape (  1  ,   3  ,   3  ) 
   print   ( " Input array: " , in_arr)  
    
  out_dim   =   geek.alen (in_arr)   
  print   (  "Length of the first dimension of arr:"  , out_dim)

Exit:

 Input array: [[[0 1 2] [3 4 5] [6 7 8]]] Length of the first dimension of arr: 1

numpy.alen () in Python

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