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)
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Output:
1st Input array : [1 2 3] 2nd Input array : [4 5 6] Output horizontally stacked array: [1 2 3 4 5 6]
Code #2 :
# 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)
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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]]