[R] Newbie help on dim

[Achim Zeileis]

On Thu, 01 Sep 2005 08:25:14 -0400 Chuck Cleland wrote:

> Should the Value: section of the help page read:
> 
> For an array (and hence in particular, for a matrix) dim retrieves the
> dim attribute of the object. It is NULL for a vector of mode integer.

This statement is true, but less general than
  It is NULL or a vector of mode integer.
hence the latter is surely preferred.
Z

> NOTE: for not or in the second sentence.
> 
> Uwe Ligges wrote:
> > Christian Prinoth wrote:
> > 
> > 
> >>Hi, if I do
> >>
> >>Z<-rnorm(50)
> >>Followed by
> >>Dim(Z)
> >>I get NULL. Is this correct? Shouldn't I get 50 instead?
> > 

> > 
> > 
> > No, because Z has no dim attribute. ?dim tells you:
> > 
> > "For an array (and hence in particular, for a matrix) dim retrieves
> > the dim attribute of the object. It is NULL or a vector of mode
> > integer."
> > 
> > 
> >>TIA
> >>Chris
> >>
> >>DISCLAIMER:\ L'utilizzo non autorizzato del presente
> >messagg...{{dropped}}>
> >>______________________________________________
> >>R-help at stat.math.ethz.ch mailing list
> >>https://stat.ethz.ch/mailman/listinfo/r-help
> >>PLEASE do read the posting guide!
> >http://www.R-project.org/posting-guide.html
> > 
> > 
> > Yes, PLEASE do read the posting guide! 
> > http://www.R-project.org/posting-guide.html
> > 
> > 
> > Uwe Ligges
> > 
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide!
> > http://www.R-project.org/posting-guide.html
> > 
> > 
> 
> -- 
> Chuck Cleland, Ph.D.
> NDRI, Inc.
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>