Dear All,
I have two matrices A (40 x 732) and B (40 x 1230) and would like to calculate
correlation between them. I can use: cor(A,B, method="pearson") to calculate
correlation between all possible pairs. But the issue is that there is one-many
specific mappings between A and B and I just need to calculate correlations for
those pairs (not all). Some variables in A (proteins, say p1) have more than 3
(or 2 or 1) corresponding mapping in B (mRNA, say, m1,m2,m3) and I would like
calculate correlations between p1-m1, p1-m2, and p1-m3 and then for the second
variable p2 etc.
I have the mapping information in another file (annotation file). Could you
please suggest me how to do that?
Thanks in advance.
Kind regards,Ezhil
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