[R] A simple question regarding plot of nls objects

Peter Dalgaard P.Dalgaard at biostat.ku.dk
Fri May 11 11:46:26 CEST 2007


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
>   
Point-5 maybe? This works nicely for me in R 2.5.0. (On openSuSE 10.2 if
that matters)

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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