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 codeplot.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.
______________________________________________ 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.
