how to combine two numpy arrays and form a new array of a new size [duplicate]

Question

I have two numpy arrays that have the same shape(4,1,2). How can I combine them and get a new array of size(8,1,2) with minimum lines of python code? Not changing values just put them together with A on the top B at the bottom.

    A=numpy.array([[[1,1]],
                   [[2,2]],
                   [[3,3]],
                   [[4,4]]]);


   B=numpy.array([[[5,5]],
                   [[6,6]],
                   [[7,7]],
                   [[8,8]]]);

I googled this "how to combine two numpy arrays" and found this stackoverflow.com/questions/9236926/… I don't even know what numpy is and figured it out... lazy question — Adam Buchanan Smith
– Adam Buchanan Smith, Commented Mar 11, 2016 at 1:01

pp_ · Accepted Answer · 2016-03-11 00:58:53Z

2

numpy.concatenate() should do what you want:

numpy.concatenate((A, B))

answered Mar 11, 2016 at 0:58

pp_

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1 Comment

Akavall Over a year ago

numpy.vstack((A,B)) is another alternative

xvan · Accepted Answer · 2016-03-11 01:01:16Z

0

Use numpy.vstack()

numpy.vstack([A,B])

answered Mar 11, 2016 at 1:01

xvan

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