MATLAB: Hot to find the matched values between two vectors and also related indeces

find matching values

Good evening to all,

I have two vectors, for example:

a = [0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27]; b= [0 8 17 25];

what I would find are the indices related the vector 'a' with the same value of 'b'…like for example in this case 1 9 18 26.

Thanks in advance.

Any answer please?

Thanks

Use these lines

idx = any(isnan(D), 2);
E = D(~idx, :);

[tf,loc] = ismember(b,a);
 loc.' =
   2     2     4     4     4     4