Error message when trying to use ordered variable in sem

[Johann Hutz]

So I've been trying to fit a sem with ordered variables. I get the following error message:

Error in lav_samplestats_step1(Y = Data, wt = wt, ov.names = ov.names,  :
  lavaan ERROR: unknown ov.types:haven_labelled

I tried to look the error message up, but couldn't really find an answer. Anyone got an idea what might be going on here? My research on the subject suggests it might have something to do with the data being imported from a stata file. I don't know if that's true though or how I might solve this problem.

[Edward Rigdon]

Please share your syntax, and some specifics about the data that you are trying to analyze.

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[Brett]

You are using variables that are not one of the base R types that lavaan expects (numeric, integer, etc.). Convert them from haven_labelled type to the appropriate base type, e.g. as.numeric(x).

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[Shu Fai Cheung]

I don't use stata so I am not 100% sure, but you may see if zap_labels() and zap_label() can solve the problem. I used them for SPSS data files imported by haven::read_sav():

https://haven.tidyverse.org/reference/zap_labels.html

https://haven.tidyverse.org/reference/zap_label.html

Check the examples to see what these two functions do.

Hope this helps.

-- Shu Fai

[Jungyeong Heo]

I think that  I had a similar problem when I read my .sav file by using haven package. As soon as I used  a different package for reading the same file (in my case, foreign package), the error messages disappeared.

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