loop problem

Hello Frank
Hi,
Here is my problem. Say I have two matrices,

Matrix A:

a b c
4 5 2
3 2 1 
4 5 6 

Matrix B:
d e f g h
3 4 5 2 1
2 3 7 8 6
8 5 1 3 4
Please produce a reproducable example, like

A <- matrix(rnorm(9),ncol=3)
B <- matrix(rnorm(15), ncol=5)

Here is just the loop for you:

n <- 0

z <- vector()  # or z <- 1:(dim(A)[2]+dim(B)[2])
for(i in 1:dim(A)[2]){
  for( j in 1:dim(B)[2] ){
    n <- n + 1
    z[n] <- cor(A[,i], B[,j])
  }
}

I hope this helps,
Matthias
I would like to correlate vector a of matrix A with with 
vectors d,e,f,g,h of matrix "B" and save the p-values (or 
some type of statistic) in a seperate result vector, say z. 
Then, I would like to repeat this process for vector b and 
vector c of matrix A. In the present example, vector z would 
end up containg 15 elements. 
I tried a few double loops, but was not successful in saving 
the results in a vector. I was only able to print them with 
the "print" or "cat" command, but could not turn the print or 
cat results into an accessible object. 

Help would be appreciated.
Thank you,
Frank. 

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