yes it is correct! look at ?dim() for more info. In this case you need
length(), i.e.,
Z - rnorm(50)
length(Z)
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35,
Check out the dim vs length for vectors thread:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/50720.html
This thread goes through the bug-or-feature discussion which is always
entertaining from a socio-R perspective.
Also, note Dim with a capital D doesn't exist.
HTH, Andy
-Original
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
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.
NOTE: for not or in the second sentence.
Uwe Ligges wrote:
Christian Prinoth wrote:
Hi, if I do
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.
NOTE: for not or in the second sentence.
NO!!! The help page is correct!
The
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
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
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
thedim attribute of the object. It
