Re: [R] Calculating Pseudo R-squared from nlme

I saw no reply to this yet, so herewith a few comments. 1. Best recommendation: Post to r-sig-mixed-models instead. Miscellaneous comments. R-squared as "an overall summary of the total outcome variability explained" is practically useless and generally misleading. Why? Short answer: Because no

[R] Calculating Pseudo R-squared from nlme

I am fitting individual growth models using nlme (multilevel models with repeated measurements nested within the individual), and I am trying to calculate the Pseudo R-squared for the models (an overall summary of the total outcome variability explained). Singer and Willett (2003) recommend calcul