From dwinsemius at comcast.net  Sat Mar 12 06:50:28 2016
From: dwinsemius at comcast.net (David Winsemius)
Date: Fri, 11 Mar 2016 21:50:28 -0800
Subject: [Rd] R-3.2.4 Mac/Linux different in < on characters
In-Reply-To: <56E3846A.5040808@oracle.com>
References: <56E3846A.5040808@oracle.com>
Message-ID: <3ED54186-ACFC-4071-BE1C-778034F81DF1@comcast.net>


> On Mar 11, 2016, at 6:52 PM, Mick Jordan <mick.jordan at oracle.com> wrote:
> 
> Linux:
> > x<-c("0","1");y<-c("a","-1"); x<y
> [1] TRUE TRUE
> 
> Mac:
> 
> x<-c("0","1");y<-c("a","-1"); x<y
> [1]  TRUE FALSE
> 

On a Mac (and noting the the documentation [somewhere that I cannot find right now] warns us the the collation sequence for characters is OS dependent):

require(R.oo)
charToInt("-")
#[1] 45
charToInt("1")
#[1] 49

> 
> On both systems, LC_COLLATE/LC_CTYPE/LANG are set to en_US.UTF-8
> 
> In Java,FWIW, I get the Mac answer if I use String.compareTo and the Linux answer if I use Collator.compareTo, but the result is consistent on Mac and Linux.
> 
> Mick Jordan
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

David Winsemius
Alameda, CA, USA



[Rd] R-3.2.4 Mac/Linux different in < on characters
David Winsemius