On Aug 18, 2010, at 12:38 PM, David Winsemius wrote:
On Aug 18, 2010, at 11:58 AM, Jimmy Söderly wrote:
Hi everybody,
I wanted to name a column vector (a variable).
This is what I did :
try<-matrix(1:4,nrow=4,ncol=1)
("try" is a bad name for an object because it is a useful function
name.)
attr(try,"dimnames")<-list(NULL,"true value")
Is it OK ?
Single column matrices get automatically converted to vectors unless
you use drop=FALSE.
The above sentence actually only a problem when you access single
column vectors with "[", so wouldn't really apply to this question.
Sorry for that misdirection on that point. The other comments still
hold.
Furthermore naming vectors with strings that contain spaces is
possible but unwise , because you will forever be needing to stick
quotes around what would otherwise not need the quotes
Thanks for your help,
Jimmy
David Winsemius, MD
West Hartford, CT
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