From p.dalgaard@biostat.ku.dk  Thu Mar  4 10:33:33 1999
From: p.dalgaard@biostat.ku.dk (p.dalgaard@biostat.ku.dk)
Date: Thu, 4 Mar 1999 11:33:33 +0100
Subject: system (PR#133)
Message-ID: <199903041033.LAA20548@biostat.ku.dk>

Prof Brian D Ripley <ripley@stats.ox.ac.uk> writes:

> According to ?system (R-release)
> 
>      system(command, intern=FALSE)
> 
> but the actual syntax is function(call, intern = FALSE, trash.errors =
> FALSE).
> 
> So, is it `call' or `command', and what does `trash.errors' do? (I assume
> it is intended to make stderr be ignored, but that would not be my
> guess from the name, and is shell-dependent, let alone system-dependent.)
> 
> I'll crawl back to documenting system() on Windows....

Filing as bug report. With 0.63.3 due out tomorrow, I don't want to fix
bugs that haven't actually bitten anyone. But yes, the docs should be
fixed to describe the actual code, it probably should be "command" and
"trash.errors = FALSE" could be something like "stderr = TRUE".

The shell-dependency is probably not avoidable, but - at least on
Linux - system and popen have /bin/sh hardcoded (POSIX?).

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

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system (PR#133)
p.dalgaard@biostat.ku.dk