Q. Any user-written packages for generalized eta-squared?

[Bruce Weaver]

Hello folks. Reading Thom Baguley's 21-Dec-2023 post in this ResearchGate thread made me wonder how one would compute a generalized eta² with Stata. I can find no mention of it here or in the documentation for esize. My preliminary searches for user-written packages have not turned up anything either. Does anyone know of a package that compute generalized eta²?

Thanks,
Bruce