Any packages for polychoric correlation?

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1

I’m analyzing a survey that has a lot of ratings scales. Is there a package to do polychoric correlations?

If not would anyone be willing to take a crack at creating such a thing?

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Hi, I’m developing a new package, ParallelAnalysis.

In this package, I implemented a function to compute polychoric correlation based on the normal distribution and the 2 step MLE estimation procedure, suggested by Olsson.

Let’s try using polycor function.

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Thanks, I’m interested in this.