[R] Empty data frame

[Gabor Grothendieck]

Try this assuming the first 15 are double and the next 15 are factor:

as.data.frame(rep(list(num = double(0), char = character(0)), each = 15))


2008/2/7 Jarosław Jasiewicz <jarekj at amu.edu.pl>:
> Gabor Grothendieck pisze:
>
> >> data.frame(a = character(0), b = double(0))
> >>
> > [1] a b
> > <0 rows> (or 0-length row.names)
> >
> >
> > On Feb 7, 2008 5:48 AM, Jarosław Jasiewicz <jarekj at amu.edu.pl> wrote:
> >
> >> Hi
> >> Sorry for banal question
> >> How to create empty data frame  with for example 30 variables without
> >> typying: data.frame(x=1,y=1....)
> >> Jarek
> >>
> thanks but it is not what I need the problem is with 30 variables: I'd
> like to avoid typing (a=double(0), b=double(0)) etc... thirty times
>
>