[R] calculate factor scores

[David Studer]

Hello everybody,

I have a problem regarding factor analysis:
As I am using the hetmat()-function from the polycor-package in order to
calculate different kinds of correlation coefficients automatically* I
cannot obtain
factor scores using fit$scores. The problem is that I am using the
fa()-function
with a correlation table (structural level) instead of raw data.

Can anyone help me in calculating factor scores ex post?

Thank you for any hints!
David

--
Here's the code:

# select variables
df<-data[c("var1", "var2", "var3", "var4", "var5", "var6")]

# compute heterogenous correlation matrix
library(polycor)
hetmat<-hetcor(df)$cor

# factor analysis
library(psych)

fa.parallel(hetmat) # number of factors?

fit<-fa(hetmat, nfactors=4, fm="ml", rotate="varimax") # factor analysis
colnames(fit$loadings)<-c("Factor1","Factor2","Factor3","Factor4")

fit$scores???

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