apologies for omitting the data ....
conc response curve 1 50 0.7533954 1 2 50 0.7755960 2 3 50 0.8001151 3 4 89 0.2858031 1 5 89 0.2883478 2 6 89 0.2954936 3 7 158 0.4296482 1 8 158 0.4406220 2 9 158 0.4567403 3 10 282 0.6484347 1 11 282 0.6555722 2 12 282 0.7361552 3 13 501 0.9768917 1 14 501 0.9809505 2 15 501 0.9952711 3 16 890 1.3950000 1 17 890 1.3262830 2 18 890 1.4754281 3 19 1582 2.2157078 1 20 1582 2.2918927 2 21 1582 2.5538562 3 22 2813 3.7403291 1 23 2813 4.0623972 2 24 2813 4.1439147 3 25 5000 5.1405423 1 26 5000 5.4242582 2 27 5000 5.4322730 3 also - > model [[1]] A 'drc' model. Call: drm(formula = response ~ conc, data = assay.data, fct = l4()) Coefficients: b:(Intercept) c:(Intercept) d:(Intercept) e:(Intercept) -1.6958 0.5089 6.9764 2629.7526 attr(,"logScale") [1] TRUE attr(,"modelType") [1] "4pl" attr(,"method") [1] "drc" attr(,"class") [1] "multFit" Uwe Ligges <lig...@statistik.tu-dortmund.de> 09/11/2010 16:21 To Robert Kinley <kinley_rob...@lilly.com> cc r-help@r-project.org Subject Re: [R] code ok in unix & R2.6 , fails in windows & R 2.12 We cannot help since we do not have the data. Uwe On 09.11.2010 16:40, Robert Kinley wrote: > hello ... > > Can anyone help me with this : > > > In R.exe 2.6 , Unix , :- > > plot.data<-model[[i]]$data$conc > newdata<-seq(min(plot.data),max(plot.data),by=1) > model.pred<-predict(model[[i]],data.frame(newdata),interval="prediction") > matpoints(newdata,model.pred[,c("Lower","Upper")],"l",col="blue",lty=1) > > works OK ... > > > in Rgui 2.12 , Windows XP , same code > >> plot.data<-model[[i]]$data$conc >> newdata<-seq(min(plot.data),max(plot.data),by=1) >> > model.pred<-predict(model[[i]],data.frame(newdata),interval="prediction") > Error in `[.data.frame`(newdata, , 2) : undefined columns selected > > > > Robert Kinley ( 'baffled' of Berkshire ) > > > > [[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. [[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.