On 7/18/07, Stephen Tucker <[EMAIL PROTECTED]> wrote: > What's wrong with lattice? Here's an alternative: > > library(ggplot2) > ggplot(data=data.frame(x,y,grps=factor(grps)), > mapping=aes(x=x,y=y,colour=grps)) + # define data > geom_identity() + # points > geom_smooth(method="lm") # regression line
I think you mean geom_point() not geom_identity()! Also, if you just want groups, and not colours you can use the group aesthetic. library(ggplot2) qplot(x, y, group=grps) + geom_smooth(method=lm) # You can have different grouping in different layers qplot(x, y, colour=factor(grps)) + geom_smooth(method=lm) qplot(x, y, colour=factor(grps)) + geom_smooth(aes(group=1), method=lm) You can see more examples of ggplot2 in use at http://had.co.nz/ggplot2 Hadley ______________________________________________ [email protected] 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.
