[R] dimnames

[David Winsemius]

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. 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
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
West Hartford, CT