> can you also reproduce the “triangles” problem? Is it just a trivial > corollary of the order-bug?
The triangles are there because you have a layer of points (from the qplot default) and layer of areas. Setting geom = "area" in qplot fixes that. Hadley -- http://had.co.nz/ ______________________________________________ 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.