MATLAB: Reshape array such that boundaries remain the same

arrayMATLAB

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

Best Answer

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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