numpy.hstack() in Python
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numpy.hstack() function is used to stack the sequence of input arrays horizontally (i.e. column wise) to make a single array.
Syntax : numpy.hstack(tup) Parameters : tup : [sequence of ndarrays] Tuple containing arrays to be stacked. The arrays must have the same shape along all but the second axis. Return : [stacked ndarray] The stacked array of the input arrays.Code #1 :
# Python program explaining # hstack() function import numpy as geek # input array in_arr1 = geek.array([ 1, 2, 3] ) print ("1st Input array : \n", in_arr1) in_arr2 = geek.array([ 4, 5, 6] ) print ("2nd Input array : \n", in_arr2) # Stacking the two arrays horizontally out_arr = geek.hstack((in_arr1, in_arr2)) print ("Output horizontally stacked array:\n ", out_arr) |
Output:
Code #2 :
1st Input array : [1 2 3] 2nd Input array : [4 5 6] Output horizontally stacked array: [1 2 3 4 5 6]
# Python program explaining # hstack() function import numpy as geek # input array in_arr1 = geek.array([[ 1, 2, 3], [ -1, -2, -3]] ) print ("1st Input array : \n", in_arr1) in_arr2 = geek.array([[ 4, 5, 6], [ -4, -5, -6]] ) print ("2nd Input array : \n", in_arr2) # Stacking the two arrays horizontally out_arr = geek.hstack((in_arr1, in_arr2)) print ("Output stacked array :\n ", out_arr) |
Output:
1st Input array : [[ 1 2 3] [-1 -2 -3]] 2nd Input array : [[ 4 5 6] [-4 -5 -6]] Output stacked array : [[ 1 2 3 4 5 6] [-1 -2 -3 -4 -5 -6]]
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