Haj i try to perform a principal component analysis by using a tetrachoric correlation matrix as data input
tetra <- tetrachoric (image_na, correct=TRUE) t_matrix <- tetra$rho pca.tetra <- principal(t_matrix, nfactors = 10, n.obs = nrow(image_na), rotate="varimax", scores=TRUE) the problem i have is to compute the individual factor scores from the pca. the code runs perfect if i do not ask for the scores if i ask for the scores i get an error message "Error in scale(x.matrix): object 'x.matrix' not found" can somebody help me? cheers wolfgang -- View this message in context: http://r.789695.n4.nabble.com/computing-scores-from-a-factor-analysis-tp4306234p4306234.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
