Hi, On 6 June 2012 08:58, Paul Murrell <p.murr...@auckland.ac.nz> wrote: > Hi > > Here's one way to approach it ... > > ggplot(data.frame(x=1:10, y=1:10)) + > geom_polygon(aes(x=xx, y=yy), fill="grey70", > data=data.frame(xx=c(0, 0, 4, 4), yy=c(0, 11, 11, 0))) + > geom_point(aes(x=x, y=y)) > > ... (supply a separate data source for the background region polygon).
and note that you can use +/- Inf for convenience, ggplot(data.frame(x=1:10, y=1:10)) + annotate("polygon", x=c(-Inf, -Inf, 4, 4), y=c(-Inf, Inf, Inf, -Inf), fill="grey70", alpha =0.5) + geom_point(aes(x=x, y=y)) HTH, baptiste > > Paul > > On 4/06/2012 4:18 a.m., Dominic Comtois wrote: >> >> I'd like to create a plot similar to this one from Kochanska et al. >> (Development and Psychopathology, 2011): >> >> >> >> <http://pages.videotron.com/do999/r-help/Kochanska_graph_ros.jpg> >> http://pages.videotron.com/do999/r-help/Kochanska_graph_ros.jpg >> >> >> >> I am new to ggplot2 and can't see any obvious way to create distinct >> coloured regions for the background, nor can I find any relevant examples. >> >> >> >> Any guidance appreciated. >> >> >> >> DC >> >> >> >> PS: The context is practically the same as the one from the image (Gene x >> Environment interaction study). I used the following tool to find the >> regions of significance, if this is of interest to anyone: >> <http://www.quantpsy.org/interact/mlr2> >> http://www.quantpsy.org/interact/mlr2 >> >> >> >> >> [[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. > > > -- > Dr Paul Murrell > Department of Statistics > The University of Auckland > Private Bag 92019 > Auckland > New Zealand > 64 9 3737599 x85392 > p...@stat.auckland.ac.nz > http://www.stat.auckland.ac.nz/~paul/ > > ______________________________________________ > 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.