M.Ribeiro wrote:
>
> Ok, I am sorry, I was building a reproducible example to post here and I
> made a mistake. Th second loop (in the variable k) updates ycorr.
> Therefore, it would be
>
> ycorr <- rnorm(10)
> Nindiv <- 10
> x <-matrix(sample(c(0:2),50,re = T),10)
> gtemp <- rnorm(10)
> for (i in 1:Nindiv) {
> for (k in 1:ncol(x)) {
> ycorr[i] <- ycorr[i] - x[i,k]*gtemp[k]
> }
> }
>
Why does gtemp have 10 elements? You are only using the first 5 in the loop.
Instead of the complete loop try this: ycorr <- ycorr - x %*%
gtemp[1:ncol(x)]
Berend
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