I frequently used extracted marginal and conditional R^2 from mixed models using r.rsquaredGLMM(mod) from package MuMIn. Since today this doesn't work any more and I get the following error: Error in r.rsquaredGLMM(mod) : could not find function "r.rsquaredGLMM"
Does anyone have a solution for this issue? Thanks, Katharina
Below a code example:
library(MuMIn)
mod <- lmer(Reaction~Subject + (1|Days), data=sleepstudy)
r.rsquaredGLMM(mod)
```