[R] Odp: A simple question regarding plot of nls objects

[Petr PIKAL]

Hi
r-help-bounces at stat.math.ethz.ch napsal dne 11.05.2007 11:12:21:

> 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?

Works for me in R 2.6.0devel. So check your versions of R and nlme. And 
look also to your objects and search path 
ls(), search()

if there is not some naming conflict.

Regards
Petr


> 
> Thanks in advance,
> Hans
> -- 
> 
> Dr. Hans Mielke
> Federal Institute for Risk Assessment
> Thielallee 88-92
> 14195 Berlin
> Germany
> Phone: +49 30 8412-3969
> 
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