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