On Tue, May 27, 2008 at 09:28:09PM -0300, Alexandre Aguiar wrote: > I have devised some applications of R as a scripting shell language and > started using it flawlessly a few months ago. > > Never minded publishing it because it looked so obvious. However, a search > in the archives revealed there is no recent easy-to-use method proposed. > The latest reference I found is from 2006 > (http://finzi.psych.upenn.edu/R/Rhelp02a/archive/81124.html) and even a c > wrapper has been proposed > (http://kavaro.fi/mediawiki/index.php/Using_R_from_the_shell).
But there are known scripting solutions: i) littler was released in the summer / fall of 2006 ii) Rscript appeared with R 2.5.0 in the spring of 2007 > So, here it goes an exceedingly simple example of my simple solution that > works pretty well: > > #!/usr/local/bin/Rscript --vanilla > update.packages(ask=F, repos="http://cran.spsconsultoria.com";) > # no need for calls to quit() > > Now just chmod this properly (at least 700 is advisable) and you have an > executable that can be run directly from the command line. > > The --vanilla option is important to avoid dissemination of .History > and .Rdata files in the system. But one can replace for another set of > options to allow the load of .Rprofile, for instance (by > using "--no-save --no-restore --no-site-file --no-environ" instead). > > This has worked to me under several flavors of Linux and R since 2.2 or 2.4, > not sure, do not remember (it must be that german guy the doctor said I > can't remove from my mind :-). As you are using Rscript, this can't have worked with R 2.2.* or 2.4.*. Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ 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.
