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Reshape array such that boundaries remain the same

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Dear Support,
I have a question regarding different sizes of arrays. I have for example 2 arrays that looks like this:
x =[0, 1, 2, 1, 0];
y =[0, 0.5, 1, 1.5, 2, 1.5, 1, 0.5, 0];
I want to extend in this case the array of array x to fit the size of array y. The only condition that I have is that the boundaries of array x remains the same, and that array x is a palindrome.
Can you help me with this?
Thanks in advance!
Kind regards,
Emile Biever

  2 Comments

Emile Biever
Emile Biever on 22 Jan 2021
Of course I am more interesting in a function on how to do this. You can see at first glance that you can make the arrays similar by placing 0.5, and 1.5 on both sides of array x.

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Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 22 Jan 2021
x = [0, 1, 2, 1, 0];
y = [0, 0.5, 1, 1.5, 2, 1.5, 1, 0.5, 0];
xnew = interp1(x,linspace(1,numel(x),numel(y)))
xnew = 1×9
0 0.5000 1.0000 1.5000 2.0000 1.5000 1.0000 0.5000 0

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