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2011 Sep 30
1
Covariance-Variance Matrix and For Loops
Hello,
I am very new to R (as my Subject probably indicates).
I want to do something that should, I think, be very simple. I have five
vectors in a list and I want to construct a covariance matrix out of them.
Given a 5X5 matrix cvm1, and the list of vectors, cvm1_list, I thought the
following would work (sorry cannot find code tags):
for(i in 1:5){
for(j in 1:5){
cvm1[i,j] <- cov(cvm1_list[[i]], cvm1_list[[j]]) } }
(PS. I know this is not the var-cov matrix yet but I though it might be a
start.)
But I get the error:
Error in cov(cvm1_list[[i]], cvm1...