Always provide sessionInfo() and traceback() when reporting errors. /Henrik
On Mon, Apr 12, 2010 at 8:34 AM, Mao Jianfeng <jianfeng....@gmail.com> wrote: > Dear R-helpers > > I want to express my respect and thankfulness to all of you. > > I just switch from windows xp to Ubuntu linux platform. I am facing > two problems when I run R in Ubuntu. > > I need your helps and advice, thanks in advance. > > ----------------------------------------------------------------------------------------------------------------------------------------------------------- > 1. JGR() can not be loaded in R session properly > > when I load JGR package in R, I got: > ---------------------------------------------------------------------------------------------- >> library(JGR) > Loading required package: rJava > Loading required package: JavaGD > Loading required package: iplots > Error in .jnew("org/rosuda/iplots/Framework") : > java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit > Error: package 'iplots' could not be loaded > > note: Tcl/Tk interface can be loaded by R automatically. > > Loading Tcl/Tk interface ... done > > ---------------------------------------------------------------------------------------------------------------------------------------------------------- > 2. demo() just can return a blank window-board > > when I execute demo(graphics) and hit <Return>, I just got a blank prompt. > ----------------------------------------------------------------------------------------------- >> demo(graphics) > > > demo(graphics) > ---- ~~~~~~~~ > > Type <Return> to start : > >> require(datasets) > >> require(grDevices); require(graphics) > >> ## Here is some code which illustrates some of the differences between >> ## R and S graphics capabilities. Note that colors are generally specified >> ## by a character string name (taken from the X11 rgb.txt file) and that line >> ## textures are given similarly. The parameter "bg" sets the background >> ## parameter for the plot and there is also an "fg" parameter which sets >> ## the foreground color. >> >> >> x <- stats::rnorm(50) > >> opar <- par(bg = "white") > >> plot(x, ann = FALSE, type = "n") > Hit <Return> to see next plot: > Error in plot.new() : attempt to plot on null device > ------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Yours, > > Jian-Feng, Mao > the Institute of Botany, CAS > Beijing, China > > ______________________________________________ > 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. > ______________________________________________ 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.