I have a simple matrix: [3 5 9 10]
. How can I transform it to: [3 0 ; 5 3 ; 9 5 ; 10 9]
[3 0 ; 5 3 ; 9 5 ; 10 9]
I tried using hankel etc. but that did not work. This needs to be a vector operation (no for/while loop). Thanks!
You were close. You actually want to use the function TOEPLITZ instead:
>> vec = [3 5 9 10];
>> toeplitz(vec,[vec(1) 0])
ans =
3 0
5 3
9 5
10 9
However, since you only have 2 columns in your matrix, this is much simpler:
[vec; 0 vec(1:end-1)].'
a = 1:4;
b = repmat(a',1,2);
b(:,2) = b(:,2)-1;
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