For loop to correlate column 1 in variable 1 to column 2 in variable 2 and so on.

I have two variables (A and B) that store 3000x30 data points. I'm interested in creating a for loop that stores the correlation coefficient for a correlation between the data in column 1 of variable A to column 1 in variable B, column 2 A and column 2 B, etc.

Currently I have...

for i=1:30

C(i) = corrcoef(A(:,i),B(:,i))

end

--- However it does not work. I believe the issue is because corrcoef gives 4 values in a 2x2 matrix, but I am only interested in the one value that is the correlation coefficient.

Thank you!

Answer 1

[Jeff Miller]

for i=1:30
   tmp = corrcoef(A(:,i),B(:,i));
   C(i) = tmp(1,2);
end