[R] Giving parameters from shell

Paul Hiemstra p.hiemstra at geo.uu.nl
Thu Jan 14 11:07:40 CET 2010


cihan inan wrote:
> Hi I want to give parameters for my function from the shell. I mean
>
> I defined a function like these:
>
> work1.R :
>
> myfunc <- function(x,y) {
>
> z = x + y
> z
> }
>
> and now I want to use shell to give parameters like " ./work1.R (3,5) " to
> get sum 8.
>
> so what should I do?
>
> 	[[alternative HTML version deleted]]
>
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>   
Hi,

Add the following shebang line at the top of your script:

#! /path/to/Rscript

The following lines will get you the parameters passed on by the user:

args = commandArgs(TRUE)

cheers,
Paul

-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +3130 274 3113 Mon-Tue
Phone:  +3130 253 5773 Wed-Fri
http://intamap.geo.uu.nl/~paul



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