Hello,
many thanks for your replies. The code I've posted was simplified and
depicted my problem basically. Of course my intention was not to add
0-columns to a matrix, the problem resulted from my approach to add only
eigenvectors to a matrix if the corresponding eigenvalue is element of
rea
Hello,
sorry for the newbie question but I can't find out where I'm wrong.
A <- matrix(1:9,ncol=3)
x <- c(0,1,0)
M <- matrix(ncol=3,nrow=3)
for(i in 1:3) {
M[,i] <- ifelse(x[i] == 0, A[,i], 0)
}
expected:
M
[,1] [,2] [,3]
[1,]107
[2,]208
[3,]309
bu
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