On 30/01/2012 17:24, Matthieu Stigler wrote:> Dear R devel list
>
> I was wondering whether zip() contains a windows specific call to
> system(),
Actually, it does not contain a call to system() ....
as the argument "invisible" seems to be windows specific,
yet> is used anytime by zip:
And what is your problem here? R ignores the arguments to systems()
where not needed.
> invisible(system2(zip, args, invisible = TRUE))
>
>
> Indeed, calling zip() on Linux results in a warning message:
>
>> file.create("try")
>
> [1] TRUE
>
>> zip("try.zip", "try")
>
> adding: try (stored 0%)
>
> Message d'avis :
>
> In system2(zip, args, invisible = TRUE) :
>
> arguments 'minimized' and 'invisible' are for Windows only
>
>> unlink("try")
>
>
> Best
>
> Matthieu
>
> > sessionInfo()
> R version 2.14.1 (2011-12-22)
> Platform: x86_64-pc-linux-gnu (64-bit)
>
> locale:
> [1] LC_CTYPE=fr_FR.UTF-8 LC_NUMERIC=C
> [3] LC_TIME=fr_FR.UTF-8 LC_COLLATE=fr_FR.UTF-8
> [5] LC_MONETARY=fr_FR.UTF-8 LC_MESSAGES=en_US.utf8
> [7] LC_PAPER=C LC_NAME=C
> [9] LC_ADDRESS=C LC_TELEPHONE=C
> [11] LC_MEASUREMENT=fr_FR.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>
> other attached packages:
> [1] colorout_0.9-9
>
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--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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