I have used R formulation style and I found this in some R documentations. On Tue, Jan 26, 2010 at 4:12 AM, Walmes Zeviani <walmeszevi...@hotmail.com>wrote:
> > I supose you are following the SAS formulation style. R has a different > formulation style, such as: > > da <- expand.grid(A=factor(1:3), x=1:10) > da$y <- as.numeric(da$A)*da$x/(1.2+da$x)+rnorm(da$x, 0, 0.1) > > m0 <- nls(y~Asym[A]*x/(Time[A]+x), data=da, start=list(Asym=c(1,2,3), > Time=c(1,1,1))) > summary(m0) > > At your disposal. > Walmes. > > ----- > ..oooO > > .................................................................................................. > ..(....)... 0ooo... Walmes Zeviani > ...\..(.....(.....)... Master in Statistics and Agricultural > Experimentation > ....\_)..... )../.... walmeszevi...@hotmail.com, Lavras - MG, Brasil > ............ > > (_/............................................................................................ > -- > View this message in context: > http://n4.nabble.com/problem-with-nls-function-tp1290020p1290034.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
