Judith Flores wrote: > Sorry, I just realized I didn't type in the correct > names of the variables I am working with, this is how > it should be: > > plot(1,1,type="n") > for (i in summ$tx) { > > points(summ$timep[summ$tx==i],summ$mn[summ$tx==i]) > lines(summ$timep[summ$tx==i],summ$mn[summ$tx==i]) > } > Hi Judith,
I think this might help: plot(1,1,type="n") # define your colors here # you can generate the vector in many ways ncolors<-length(unique(summ$tx)) colorvector<-rainbow(ncolors) colorindex<-1 for(i in summ$tx) { points(summ$timep[summ$tx==1],summ$mn[summ$tx==i], type="b",col=colorvector[colorindex]) colorindex<-colorindex+1 } This may also answer the query from Valentin Bellassen. Jim ______________________________________________ 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.