[R] Giving parameters from shell

[Don MacQueen]

Try for yourself and see. (it's not difficult to try)

For example, put the line in both places, followed by
   print(args)
and see what happens.

-Don

At 11:49 PM +0200 1/14/10, cihan inan wrote:
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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?
>>>
>>>         [[alternative HTML version deleted]]
>>>
>>>
>>>  ______________________________________________
>>>  R-help at 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.
>>>
>>>
>>  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
>>
>>
>
>
>--
>Özgürlük için...http://*www.*pardus.org.tr/
>
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>
>
>______________________________________________
>R-help at 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.


-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062