[R] Factor analysis

[Brima]

Thanks very much. However, I got an error message when I tried.
What I did is that I created a correlation matrix named dat which is the
only data I have and tried using the below

> fa<- factanal(covmat = dat, factors=2, rotation="none", scores="none")
Error in factanal(covmat = dat, factors = 2, rotation = "none", scores =
"none") : 
  'covmat' is not a valid covariance list 

Please help.

Best regards
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