[R] Detecting startup flags from within R.

[Barry Rowlingson]

2009/2/19 Rolf Turner <r.turner at auckland.ac.nz>:
>
>
> Is there a way to detect from within R whether, e.g., R has been
> started with the --no-restore-data flag set?  So as to be able
> to invoke code along the following lines:
>
>        if( --no-restore-data flag set) {
>                do something
>        } else {
>                do something else
>        }
>
> Thanks for any assistance.

?commandArgs

 > "--no-restore-data" %in% commandArgs()
 [1] TRUE

or false if I hadn't started it with that arg...

Barry