[Rd] dim "heritage"

Erich Neuwirth erich.neuwirth@univie.ac.at
Sun, 01 Apr 2001 19:48:58 +0200


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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