[R] R scripts and parameters
ggrothendieck at gmail.com
Tue Feb 17 17:13:45 CET 2009
A <- 1
B <- 2
C <- 3
Now the code in myfile can access A, B and C.
On Tue, Feb 17, 2009 at 10:55 AM, <mauede at alice.it> wrote:
> A couple of weeks ago I asked how it is possible to run an R script (not a function) passing some parameters.
> Someone suggested the function "commandArgs()".
> I read the on-line help and found no clarifying example. Therefore I do not know how to use it appropriately.
> I noticed this function returns the pathname of the R executable which is not what I need.
> I meant to ask if it is possible to open an R session and launch a script passing parameters that the script can retrieve and use itself.
> Just like in C I can run a program and call it with some arguments
>> Example_Prog A B C
> The program "Example_Prog" can acess its own arguments through the data structures "argc" an "argv".
> How can I launch an R script simulating the above mechanism ?
> Shall I use source ("script-name") ?
> Where are the arguments to be passed, as part of the source call ?
> Is the function "commandArgs" to be places as one of the first code lines of the script in order to access its own arguments ?
> Is there any "commandArgs" usage example ?
> Thank you very much in advance.
> tutti i telefonini TIM!
> [[alternative HTML version deleted]]
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
More information about the R-help