[R] passing parameters to an R script

Henrik Bengtsson hb at stat.berkeley.edu
Sun Jan 4 12:44:45 CET 2009


On Sat, Jan 3, 2009 at 7:32 PM,  <mauede at alice.it> wrote:
> I knowf R functions ca be called passing some parameters.
> My first question is: how are parameters passed to R functions ?
> Browsing through R archives I found an answer confirming taht parameters can
> be passed to the  called function by value. I wonder whether passing the parameter
> address is possible somehow to allow the function to actually change its value.

See for instance the R.oo package (on CRAN).  That will allow you to
emulate pass by reference of R objects (using R environments).

>
> My second question is about running R scripts with parameters. Something similar to the
> s/w device (argc, argv) which is used to run a C program with initial parameters.
> Is this possible at all ?

See help(commandArgs).

/Henrik

>
> Thank you very much.
> Maura
>
>
>
> tutti i telefonini TIM!
>
>
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