This is a very small package with only one function, polyCov(), designed to simplify the implementation of ordinal multigroup factor analysis in R. This function can be used to estimate a polychoric (or tetrachoric) correlation matrix assuming standardized latent items. If thresholds are given, it estimates polychoric covariances, means and variances.
Package details 


Author  Sacha Epskamp 
Maintainer  Sacha Epskamp <sacha.epskamp@gmail.com> 
License  GPL2 
Version  0.1 
Package repository  View on GitHub 
Installation 
Install the latest version of this package by entering the following in R:

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