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2012 Jan 18
2
computing scores from a factor analysis
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 err...