For the first part, use the col and pch arguments: id<-rep(c(0,2),each=50) e<-rnorm(100) x<-rnorm(100) y<-id+x+e xyplot(y~x,groups=id,col=c(3,4),pch=c(12,13))
For the second part, I do not know what exactly mean by superimpose the mean level? Should the mean for each group be displayed as a horizontal line? Best, Daniel Bharath Kumar wrote: > > Dear users, > > I am new to R and have couple of problems with xyplot. > > A) I am trying to use the xyplot to plot mean concentration vs time across > 5 dose groups. > > When i use the following script > xyplot(mean~time,groups=dose,type="b",panel=panel.superpose). R generates > the plot, but i have no control over pch or color for the line. It > displays whatever color and pch it wants to generate. How do i fix this. > > B) I am trying to use the same function to plot individual data across > dose groups > > xyplot(conc~time|dose,groups=subject,type="l") works. But it would be > great if anyone can shed light on how to superimpose the mean profile for > each dose group within that panel > > Any help will be appreciated > Thanks > Kumar > -- View this message in context: http://r.789695.n4.nabble.com/help-on-panel-superpose-tp3687965p3688225.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.
