The example works fine for me on R 2.5.0 and WinXP... Mielke Hans wrote: > Hi, > > I was trying to run the example of Indomethacin kinetics from the book: > > ## From Pinheiro/Bates, Mixed-Effects-Models in S and S-Plus, > ## Springer, Second Printing 2001, Section 6.2 > library(nlme) > plot(Indometh) > fm1Indom.nls <- nls(conc~SSbiexp(time,A1,lrc1,A2,lrc2), data=Indometh) > summary(fm1Indom.nls) > plot(fm1Indom.nls,Subject~resid(.),abline=0) > ## .... > > the last plot command gives me the error message: Subject not found in data > > What point am I missing? > > Thanks in advance, > Hans >
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