On Thu, 01 Sep 2005 14:44:53 +0200 Uwe Ligges wrote: > Achim Zeileis wrote: > > > 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, in fact, it is not true: > > x <- integer(1) > dim(x) <- 1 > typeof(x) # "integer" > dim(x) # 1
But then: is.vector(x) # FALSE but let's not start nitpicking here. Z > Best, > Uwe > > > > > > 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@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@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. > >>71 West 23rd Street, 8th floor > >>New York, NY 10010 > >>tel: (212) 845-4495 (Tu, Th) > >>tel: (732) 452-1424 (M, W, F) > >>fax: (917) 438-0894 > >> > >>______________________________________________ > >>R-help@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 > >> > > ______________________________________________ > R-help@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 > ______________________________________________ R-help@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