Newbie help on dim
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 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 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. 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 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