numpy.alen() function 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 # 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 : \n", in_arr) out_dim = geek.alen(in_arr) print ("Length of the first dimension of arr: ", out_dim) |
Output:
Input array : [[[0 1 2] [3 4 5] [6 7 8]]] Length of the first dimension of arr: 1
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