Using formulas constructed from strings only
partially works for me in lme:
library(nlme)
data(Orthodont)
fm2<-lme(as.formula("distance~age"),data=Orthodont,random=~1|Subject)
summary(fm2) # works
augPred(fm2) # fails
#Error in inherits(object, "formula") :
#Argument "object" is missing, with no default
I assume that my use of as.formula is wrong, but what's the right way?
Or at least a workaround?
Dieter Menne
______________________________________________
[EMAIL PROTECTED] mailing list
http://www.stat.math.ethz.ch/mailman/listinfo/r-help
