Dear all,

I am fitting my data using nlme package. The syntax is as follow:
model<-lme(Energy efficiency ~ADF + CP + DE, random =~1|Study, data=phuong).
Can someone tell me how to find the R-squared for this model?. I've found
the lmmfit package of Aleksandra Maj (2011):
http://cran.r-project.org/web/packages/lmmfit/lmmfit.pdf
But there are several function to estimate R-squared. Could you please tell
me which one should I apply.

Thanks!
Phuong

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