From erich.neuwirth@univie.ac.at  Sun Apr  1 18:48:58 2001
From: erich.neuwirth@univie.ac.at (Erich Neuwirth)
Date: Sun, 01 Apr 2001 19:48:58 +0200
Subject: [Rd] dim "heritage"
References: <Pine.LNX.4.31.0104011839000.1244-100000@gannet.stats>
Message-ID: <3AC76A0A.4A1F7F1C@univie.ac.at>

i understand that part.
i wonder if it would make sense
thnat sort(x) also keeps the dimensions
(it should be an object of the same dimensions in any case i can
imagine).


Prof Brian Ripley wrote:
> 
> On Sun, 1 Apr 2001, Erich Neuwirth wrote:
> 
> > when i do
> >
> > x<-4:1
> > dim(x)<-c(4,1)
> >
> > and then
> > z<-sin(x)
> > dim(z) is c(4,1)
> >
> > sort(x)
> > however, does not have a dim attribute.
> >
> > is this intended behavior?
> 
> Yes.  You would expect x^2 to act elementwise, and all elementwise
> arithmetic operations keep the dimensions.
> 
> --
> Brian D. Ripley,                  ripley@stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272860 (secr)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595

--
Erich Neuwirth, Computer Supported Didactics Working Group
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[Rd] dim "heritage"
Erich Neuwirth