Dear R-Experts, I have fitted an ordinal logistic regression with just 1 explanatory variable for the reproducible example here below.
Everything is working, now I try to calculate the Nagelkerke Pseudo R-squared. I have found a package BaylorEdPsych providing many Pseudo R-squared, but the example shown in the package is for GLM (binary logistic regression) not for ordinal logistic regression. How can I calculate the Nagelkerke Pseudo R-squared for ordinal logistic regression ? Many thanks as usual for your precious help. Reproducible example : install.packages("MASS") library(MASS) a=factor(c("tres grand", "grand", "petit","petit","tres grand","grand","petit","petit","tres grand","grand")) b=c("homme", "homme", "femme", "femme", "femme", "homme", "homme", "homme", "femme", "femme") m <- polr(a ~ b, Hess=TRUE) summary(m) ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.