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.