Dear Rexperts: (R 2.0.1 on Windows XP Pro) Is the following problem unique to my setup? If it's a known problem, I didn't see it at http://bugs.r-project.org/ nor find discussion in the archives. plot(1:10) loc <- c(5, 6) text(loc, labels = "a") Produces expected results according to ?xy.coords. plot(1:10) loc <- list(x = 5, y = 6) text(loc, labels = "a") No problem. But: plot(1:10) loc <- list(5, 6) text(loc, labels = "a") crashes RGui. ("R for Windows GUI front-end has encountered a problem and ...") R-FAQ:9.1 says: If you call .C(), .Fortran(), .External() or .Call() (or .Internal()) yourself (or in a function you wrote), you can always crash R by using wrong argument types (modes). This is not a bug. I realize that I'm using the wrong argument type; nevertheless, if the behaviour is general, it might be better to generate an error. For anyone with more know-how than I have, here are the details of the crash: AppName: rgui.exe AppVer: 2.1.41115.0 ModName: r.dll ModVer: 2.1.41115.0 Offset: 000ef1b3 Peter Ehlers U of Calgary ehlers@math.ucalgary.ca
Prof Brian Ripley
2004-Nov-24 10:21 UTC
[Rd] text() with invalid argument type crashes RGui.exe
It's general (on all platforms), and the internal code for text.default needs a safety check. On Wed, 24 Nov 2004, P Ehlers wrote:> Dear Rexperts: > > (R 2.0.1 on Windows XP Pro) > > Is the following problem unique to my setup? > If it's a known problem, I didn't see it at > http://bugs.r-project.org/ nor find discussion in the archives. > > plot(1:10) > loc <- c(5, 6) > text(loc, labels = "a") > > Produces expected results according to ?xy.coords. > > plot(1:10) > loc <- list(x = 5, y = 6) > text(loc, labels = "a") > > No problem. > > But: > > plot(1:10) > loc <- list(5, 6) > text(loc, labels = "a") > > crashes RGui. > ("R for Windows GUI front-end has encountered a problem and ...") > > R-FAQ:9.1 says: > > If you call .C(), .Fortran(), .External() or .Call() (or > .Internal()) yourself (or in a function you wrote), you can > always crash R by using wrong argument types (modes). This > is not a bug. > > I realize that I'm using the wrong argument type; > nevertheless, if the behaviour is general, it might be better > to generate an error. > > For anyone with more know-how than I have, here are the details > of the crash: > AppName: rgui.exe AppVer: 2.1.41115.0 ModName: r.dll > ModVer: 2.1.41115.0 Offset: 000ef1b3 > > > Peter Ehlers > U of Calgary > ehlers@math.ucalgary.ca > > ______________________________________________ > R-devel@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > >-- Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
Roger Bivand
2004-Nov-24 10:22 UTC
[Rd] text() with invalid argument type crashes RGui.exe
On Wed, 24 Nov 2004, P Ehlers wrote:> Dear Rexperts: > > (R 2.0.1 on Windows XP Pro) > > Is the following problem unique to my setup? > If it's a known problem, I didn't see it at > http://bugs.r-project.org/ nor find discussion in the archives. > > plot(1:10) > loc <- c(5, 6) > text(loc, labels = "a") > > Produces expected results according to ?xy.coords. > > plot(1:10) > loc <- list(x = 5, y = 6) > text(loc, labels = "a") > > No problem. > > But: > > plot(1:10) > loc <- list(5, 6) > text(loc, labels = "a") > > crashes RGui. > ("R for Windows GUI front-end has encountered a problem and ...") > > R-FAQ:9.1 says: > > If you call .C(), .Fortran(), .External() or .Call() (or > .Internal()) yourself (or in a function you wrote), you can > always crash R by using wrong argument types (modes). This > is not a bug. > > I realize that I'm using the wrong argument type; > nevertheless, if the behaviour is general, it might be better > to generate an error. > > For anyone with more know-how than I have, here are the details > of the crash: > AppName: rgui.exe AppVer: 2.1.41115.0 ModName: r.dll > ModVer: 2.1.41115.0 Offset: 000ef1b3 >Version 2.0.1 (2004-11-15), ISBN 3-900051-07-0 RHEL 3 i386> plot(1:10) > loc <- list(5, 6) > text(loc, labels = "a")Program received signal SIGFPE, Arithmetic exception. 0x080edd3b in do_text (call=0x9080c48, op=0x867d72c, args=0x8660570, env=0x8a1bf90) at plot.c:2153 2153 xx = x[i % n];> > Peter Ehlers > U of Calgary > ehlers@math.ucalgary.ca > > ______________________________________________ > R-devel@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel >-- Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business Administration, Breiviksveien 40, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93 e-mail: Roger.Bivand@nhh.no