[R] is.null doesn't work

[Atte Tenkanen]

Seems to work, if I unlist the argument at first ;-)

Atte

> Hi,
> 
> What's wrong here?:
> 
> > v=c(`-`,`+`,1,`^`,`^`,NA,NA,"X",9,"X",2)
> > i2=16
> > v[i2]
> [[1]]
> NULL
> 
> > is.null(v[i2])
> [1] FALSE
> 
> Is it a bug or have I misunderstood something?
> 
> Atte Tenkanen
> University of Turku, Finland
>