On Thursday, July 19, 2012, Stuart Leask wrote: > (Oh, and yes I've tried setting 'inches=F', but I then get a circle > correct on X axis, but too large on the Y axis.)
We're back to "read the help." ?symbols explictly states that if inches=FALSE and the axis scales are different, then the x axis coordinates will be used. And if your axes are different, why would you expect a *circle* to fit both simultaneously? Perhaps instead you need plot.ellipse from the plotrix package. Sarah > -----Original Message----- > From: r-help-boun...@r-project.org <javascript:;> [mailto: > r-help-boun...@r-project.org <javascript:;>] On Behalf Of Stuart Leask > Sent: 18 July 2012 11:03 > To: r-help@r-project.org <javascript:;> > Subject: [R] 'symbols' not plotting correct circle radii > > Hi there. > > I have been plotting some circles using 'symbols', with radii representing > my data, but the radii looked incorrect. > > It seems to happen with a single circle too: > > Symbols ( 0, 0, circles = 40, xlim = c(-40, 40), ylim= c(-40, 40)) > > If I put a ruler up to my monitor (technology!) to compare the radius > with the axes, the circle isn't radius 40; it is closer to 15... > > I suspect there is a simple answer. > -- Sarah Goslee http://www.stringpage.com http://www.sarahgoslee.com http://www.functionaldiversity.org [[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.
