Question

Hi i’m looking for a way to take a slice of an array from the near the end to near the beginning. I know I could do this in two parts, then add them, but it seems like such a commonly desired operation I thought matlab probably already has it built in but I couldn’t find any information in my search.
To clarify I would like to be able to say:

y = 1:10
y(-3:3) or y(8:3)
returns:
8 9 10 1 2 3

Thanks in advance.

Answer 1

You can try this:

y = 1:10;   
n = 3;   
y([end-n+1:end 1:n]);

This returns

ans =

     8     9    10     1     2     3