matching the count of indices of two arrays

Hi, Im trying to do match the number of index of A and B.

for example.. if A is (1x100 double) and B is (1x50 double),

I would manually write A=A(1:50) to truncate the A's index to match B's.

However, is there a way where a MATLAB code will automatically count the A's and B's index and match them?

i.e. n=countIndex(B);A=A(1:n);

does that make sense...??

Very Respectfully, Dan

Answer 1

[Andrei Bobrov]

Hi Daniel! This is what you want?

n = min(numel(A),numel(B));
idxequal = find(A(1:n)==B(1:n));

[Daniel]

thank you soooooooooooo much

this worked. not entirely though, but 90% of the code did.

for some reason, command idxequal wasnt working.

so, i wrote: A=A(1:n);B=B(1:n) instead after the first line.

Thanks again!