Hello Hadley, thanks again. You are right, it normally is not a good thing to fill the area with so many colours/shapes/linetypes, but in certain cases you have to do it. We sometimes have more than 30 different pointclouds on a scatterplot and the plots are still useful. These plots are analysis workhorses not intended for the presentation of results.
Bernd -----Original Message----- From: hadley wickham [mailto:[EMAIL PROTECTED] Sent: Thursday, February 07, 2008 8:10 PM To: Engelmann, Bernd Cc: r-help@r-project.org Subject: Re: [R] consolidate legends in ggplot2 Hi Bernd, > Can ggplot2 handle bigger numbers of breaks by reusing aesthetics ? No - the attributes were fairly careful picked to actually be distinguishable, which is very hard to do above a certain number of colours/shapes/linetypes etc. But your approach (creating your own scales) is basically correct - I will provide things that I think work best perceptually as defaults, but it should be easy for you to override them if you believe otherwise. In the latest version you can simplify your code to: my_colour <- scale_colour_manual(values = c('green','red','blue','violet','orange2','skyblue','magenta','burlywood 1', 'cadetblue1','maroon3','aquamarine','bisque1','darkgoldenrod1','darkkhak i', 'cornsilk3', 'lightsalmon1','deepskyblue2','goldenrod1','hotpink', 'lightslateblue', 'mistyrose1','olivedrab1','plum1','pink1','orange3')) and my_solid_shape <- scale_shape_manual(values = c(16, 17, 15, 3, 7, 8, 16, 17, 15, 3, 7, 8, 16, 17, 15, 3, 7, 8)) my_hollow_shape <- scale_shape_manual(values = c(1, 2, 0, 3, 7, 8, 1, 2, 0, 3, 7, 8, 1, 2, 0, 3, 7, 8)) And the next version will actually be smart enough to create the obvious legend. 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.
