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

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Emile Biever 2021-1-22

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.

Fangjun Jiang 2021-1-22

define "boundaries"

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Answer 1

Stephen23 2021-1-22

在 MATLAB Online 中打开

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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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Emile Biever 2021-1-22

Thnx, this helped me out.

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