Giving parameters from shell

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?

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I want to learn one more thing. You said
args = commandArgs(TRUE)

should I write this sentence in my function or out of my function area ?

can you give me an example .r file ?


2010/1/14 Paul Hiemstra <p.hiemstra at geo.uu.nl>

 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?

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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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