[R] building packages for Linux vs. Windows
(Ted Harding)
Ted.Harding at manchester.ac.uk
Sun Feb 10 19:39:40 CET 2008
On 10-Feb-08 18:07:56, Erin Hodgess wrote:
> Hi R People:
>
> I sure that this is a really easy question, but here goes:
>
> I'm trying to build a package that will run on both Linux and Windows.
>
> However, there are several commands in a section that will be
> different in Linux than they are in Windows.
>
> Would I be better off just to build two separate packages, please?
> If just one is needed, how could I determine which system is running
> in order to use the correct command, please?
>
> Thanks in advance,
> Erin
There is the "version" (a list) variable:
version
# platform i486-pc-linux-gnu
# arch i486
# os linux-gnu
# system i486, linux-gnu
# status Patched
# major 2
# minor 4.0
# year 2006
# month 11
# day 25
# svn rev 39997
# language R
from which you can extract the "os" component:
version$os
# [1] "linux-gnu"
I don;t know what this says on a Windows system,
but it surely won't mention Linux!
So testing this wil enable you to set a flag, e.g.
Linux<-ifelse(length(grep("linux",version$os))>0, TRUE, FALSE)
if(Linux){window<-function(...) X11(...)} else
{window<-function(...) windows(...)}
Hoping this helps,
Ted.
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Date: 10-Feb-08 Time: 18:39:29
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