I've been calling R from shell using the following (as example) ...
#!/bin/bash
for dir in $(ls *.txt); do
R CMD BATCH script.R
done
Muhammad
Tsjerk Wassenaar wrote:
Hi,
That seems quite neat. To make it a bit more flexible, and maybe do
some argument acrobatics with bash, you could change the first few
lines to something like
#!/bin/bash
exec R --vanilla -q --slave -e "source(file=pipe(\"sed -n
/^##RSTART/,\$p $0\"))" --args $@
##RSTART
# Script here
Cheers,
Tsjerk
On Mon, Mar 29, 2010 at 6:31 PM, Jason E. Aten <j.e.a...@gmail.com> wrote:
Thanks Gabor. I didn't realize you could. Here is the scriptdemo.rsh file
as a text attachment, in case the line wraps made it hard to read/use.
- Jason
On Mon, Mar 29, 2010 at 11:19 AM, Gabor Grothendieck <
ggrothendi...@gmail.com> wrote:
Thanks.
You might want to repost it as a text attachment since many of the
lines wrapped around.
Another more permanent possibility would be to put it on the R wiki at
http://rwiki.sciviews.org/doku.php
Note that the gsubfn package has a facility for quasi-perl type string
interpolation as well. Just preface any function with fn$ and the
facility is applied to the arguments of the function (subject to
certain heuristics which determine which args to apply it to).
library(gsubfn)
today <- format(Sys.Date())
show <- list()
show$syntax <- 43
Sys.setenv(AN_ENV_VAR="greetings (I'm an env var!)")
fn$cat('Getting `Sys.getenv("AN_ENV_VAR")` from the environment, on
$today,
+ `show$syntax` is also possible.\n')
Getting greetings (I'm an env var!) from the environment, on 2010-03-29,
43 is also possible.
On Mon, Mar 29, 2010 at 11:41 AM, Jason E. Aten <j.e.a...@gmail.com>
wrote:
Dear R users,
A colleague of mine asked me how to write a script (an executable text
file
containing R code) in R. After I showed
him, he said that after extensive searching of the R archives, he had not
found anything like these techniques.
He suggested that I share these methods to enable others to leverage R as
a
better alternative to bash/perl scripts.
So in the interest of giving back to the R community, and with all
humility,
I offer the
following small demonstration of one method for creating scripts of R
code
that are
executable from the (at least Linux) command line.
I don't make any warrantees that this will work for you, but if it helps
somebody at least
get starting utilizing R effectively in scripts, then great!
Best regards,
Jason
--
Jason E. Aten, Ph.D.
# file: scriptdemo.rsh
______________________________________________
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.
