Soare Marcian-Alin asks > Sent: Monday, 14 May 2007 7:34 AM > To: R-help@stat.math.ethz.ch > Subject: [R] factanal > > Hello Guys,
... and the gals, I presume. > I have problem with the factanal function, I dont understand why it tells me > everytime "2 factors is too many for 3 variables" It's because the 'x' argument to factanal is supposed to be the matrix of responses, and not something derived from it as you use below. > data set: > http://www.statistik.tuwien.ac.at/public/filz/students/multi/ss07/world2 .R > > code: > library(robustbase) > > source("world2.R") > > str(world) # structure > summary(world) > > world[,8] <- log(world[,8]) > world[,9] <- log(world[,9]) > x <- world[,-c(1,2)] > x = scale(x) > princomp(x, cor=TRUE) > summary(princomp(x, cor=TRUE)) # First Three Main Components: 0.8687063 > > #a) paarweise Biplots > biplot(princomp(x, cor=TRUE)) > biplot(princomp(x, cor=TRUE), choices=c(1:2)) > biplot(princomp(x, cor=TRUE), choices=c(1:3)) > biplot(princomp(x, cor=TRUE), choices=c(2:3)) > > #b) varimax > x.loa <- loadings(princomp(x, cor=TRUE)) > varimax(x.loa[,1:3]) > varimax(x.loa[,1:3])$rotmat > rotmat <- varimax(x.loa[,1:3])$rotmat > biplot(princomp(rotmat, cor=TRUE), choices=c(1:2)) > biplot(princomp(rotmat, cor=TRUE), choices=c(1:3)) > biplot(princomp(rotmat, cor=TRUE), choices=c(2:3)) > > #c) factor-analysis > factanal(rotmat, factors=2) ## ????? how about using factanal(x, factors = 2) ### ? > > Thanks in advance. > > KR, > Alin Soare > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > ______________________________________________ R-help@stat.math.ethz.ch 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.
