Factor analysis after running polychoric correlation matrix for mixed data

[Silvana Builes]

Hi guys!
Hope you're all ok.

I'm trying to run a Factor analysis using the information generated by a polychoric correlation matrix ( for mixed data), as suggested here http://stats.idre.ucla.edu/stata/faq...ous-variables/
The problem is that everything works fine until the correlation matrix, after that i have nott been able to obtain the factor analysis, due to that when i type
factormat r, n($N) factors(4) , stata replies by saying ...matrix r has missing values . I already checked for those missing values, and they are not missing anymore. What is happening? Hope you can help me! Thanks

[Joseph Coveney]

stata replies by saying ...matrix r has missing values . I already checked for those missing values, and they are not missing anymore. What is happening?

You're overlooking missing values that Stata doesn't.

Try this

display in smcl as error matmissing(r)
display in smcl as result $N

just before your

factormat r, n($N) factors(4)