On Mon, 2007-05-07 at 19:44 +0200, Erich Neuwirth wrote: > Using layout I am plotting 5 boxplots on top of each other, > all of them using colored boxes in different order. > In a 6th box below I want to give the legend explaining the box colors, > and I want this box to be centered in an otherwise empty plot. > I am creating this plot by > plot(0:1,0:1,type="n") > > Is there an easy way to find the parameters x and y for calling legend > which will center the legend in this plot?
Eric, legend() has positional arguments to enable you to do what you require. Something along the lines of the following: # Do your plot plot(0:1, 0:1, type = "n", ann = FALSE, axes = FALSE) # Do the legend, centered legend("center", "This is a test legend") See the Details section of ?legend, third paragraph. Also, the last set of examples there. HTH, Marc Schwartz ______________________________________________ R-help@stat.math.ethz.ch 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.