Dear all, Rank of a matrix depends on which factors? Only on rows or coumns? or both ? If there is a collinearlity in the variables ( columns ) does it effects the rank?
> X<-matrix((rnorm(10000)),50) > dim(X) [1] 50 200 > qr(X)$rank [1] 50 > X[,2]<-X[,30] > qr(X)$rank [1] 50 > X[10,]<-X[7,] > qr(X)$rank [1] 49 Thanks Alex [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.