Re: [R] Runing R in a bash script As I har problems installing the Cairo package, I went for Henriks solution - and it works almost perfect. I would like to have been able to generate transparent png. Thanks for the help Ulrik On 18/04/07, Henrik Bengtsson  wrote: > > Or see png2() in R.utils, which imitates png() but uses bitmap(), > which in turn uses postscript-to-png via ghostscript.  BTW, personally > I think PNGs generated via bitmap() look way better than the ones > generated via png(). > > /Henrik > > On 4/17/07, Jeffrey Horner  wrote: > > Ulrik Stervbo wrote: > >  > Hello! > >  > > >  > I am having issues trying to plot to a ong (or jpg)  when the R-code > in a > >  > bash script is executed from cron. > >  > > >  > I can generate a pdf file, but when I try to write to a png, the file > is > >  > created, but nothing is written. If I execute the bash script from my > >  > console, everything works file. Any ideas? > >  > > >  > In my cron I have SHELL=/bin/bash - otherwise /bin/shell is used and > the > >  > folowing enery, so example is executed every minute > >  > * * * * * [path]/example.sh > >  > > >  > I am running > >  > R version 2.4.1 (2006-12-18) > >  > > >  > Here's a minimal example - two files one R-script ('example.r') and > one > >  > bash-script ('example.sh') > >  > > >  > example.r > >  > # Example R-script > >  > x <- c(1:10) > >  > y <- x^2 > >  > png(file="example2.png") > >  > #pdf(file="example2.pdf") > >  > plot(x,y) > >  > graphics.off() > >  > > >  > example.sh > >  > #/bin/bash > >  > # > >  > # Hello world is written to exhotext every time cron executes this > script > >  > echo "Hello world" > echotext > >  > # This works, but not when executed from cron > >  > n=`R --save < example.r` > >  > # using exec as in `exec R --save < example.r` dosent work with cron > > either > >  > # This also works, but nothing is written to the png when executed > > from cron > >  > R --save < >  > x <- c(1:10) > >  > y <- x^2 > >  > png(file="example2.png") > >  > #pdf(file="example2.pdf") > >  > plot(x,y) > >  > graphics.off() > >  > #dev.off() dosent work at all when executed from cron > >  > RSCRIPT > > > > The png() device requires an X server for the image rendering. You might > > be able to get away with exporting the DISPLAY environment variable > > > > export DISPLAY=:0.0 # try and connect to X server on display 0.0 > > > > within your script, but it will only work if the script is executed by > > the same user as is running the X server, *and* the X server is running > > at the time the script is executed. > > > > There are a handful of packages that will create a png without the > > presence of an X server, and I'm partial to Cairo (since I've done some > > work on it). You can install the latest version like this: > > > > install.packages("Cairo",,'http://rforge.net/',type='source') > > > > Cairo can also outputs nice pdf's with embedded fonts... useful if you > > want to embed high-quality OpenType or TrueType fonts. > > > > Best, > > > > Jeff > > -- > > http://biostat.mc.vanderbilt.edu/JeffreyHorner > > > > ______________________________________________ > > 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. > > > 	[[alternative HTML version deleted]] ______________________________________________ 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.