[R] Feedback requested on a solution to specifying R-scripts on the command line

From: Mike R <mike.rstat_at_gmail.com>
Date: Thu 09 Jun 2005 - 09:17:55 EST

Hi All,

I'm new to R and would like to get started on the right foot, so to say. So I am requesting feedback on a paradigm for organizing R projects. In esence, I am trying to organize my R projects in the same way I organize my numerical simulations. But it feels like I am imposing

In particular, I'm not sure why the ability to specify R-scripts on the command line is not "built in" to R. For example, am I not understanding the traditional paradigm for R projects? If so, is there documentation that gives a practical orientation to R projects?

>From the command line, I'd like to be able to start an
interactive R session and at the same time, be able to specify on the command line a project-specific or task-specific script (R code) that is to be executed at the beginning of the session.

My current solution is the following:

Add the following line to dot-Rprofile:

.First <- function()
 if( Sys.getenv("R_CUSTOM") != "" )
  for ( filename in strsplit(Sys.getenv("R_CUSTOM")," ")[[1]] )   {
   source( filename )

Then set the environement variable R_CUSTOM using a wrapper. Here is a wrapper for bash:

#! /bin/bash
export R_CUSTOM=$*

If the wrapper file is named wrapR then here are some sample command lines (my shell prompt is set to ##):

## wrapR

## wrapR project_kit.R

## wrapR project_kit.R 00task_verify_mikes_datafile.R

## wrapR project_kit.R 02task_verify_jeffs_datafile.R

## wrapR project_kit.R 11task_analyze_pooled_data.R

## wrapR project_kit.R 21task_generate_figures_for_executivesummary.R

## wrapR project_kit.R 22task_generate_figures_for_paper.R

Normally these could be run using redirection, as in the following command line:

## R < 22kit_n_task_generate_figures_for_paper.R

but in that case, R exits when through.

Any comments would be welcome.

Thanks in advance,

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 Received on Thu Jun 09 09:22:07 2005

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