I have 2 vectors of numbers from 1 or -1. What are the standard Matlab tools that will help me calculate the correlation number between two vectors? Thanks in advance!
The CORRCOEF function is what you are looking for:
R = corrcoef(vector1(:),vector2(:)); %# Returns a 2-by-2 matrix of %# correlation coefficients
If you have a Statistics Tool , you can also check the CORR function:
RHO = corr(vector1(:),vector2(:)); %# Returns the linear correlation coefficient %# (default is a Pearson correlation)
The corr function in matlab will switch to the Phi coefficient if it sees binary data.