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.
Maura






tutti i telefonini TIM!


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