great! many thanks, Phil
Cheers
christoph
Phil Spector wrote:
Christoph -
I think reshape is the function you're looking for:
tt <- data.frame(cbind(c(1,1,1,1,1,2,2,2,3,3,3,3),
+ c(10,12,8,33,34,3,27,77,34,45,4,39), c('a', 'b', 'b', 'a', 'c', 'c', 'c',
+ 'a', 'b', 'a', 'b', 'c')))
reshape(aggre
On Tue, 2005-02-01 at 23:28 +0100, Christoph Lehmann wrote:
> Hi
> I have a simple question:
>
> the following data.frame
>
> id iwv type
> 1 1 1a
> 2 1 2b
> 3 1 11b
> 4 1 5a
> 5 1 6c
> 6 2 4c
> 7 2 3c
> 8 2 10a
> 9 3 6b
>
Hi
I have a simple question:
the following data.frame
id iwv type
1 1 1a
2 1 2b
3 1 11b
4 1 5a
5 1 6c
6 2 4c
7 2 3c
8 2 10a
9 3 6b
10 3 9a
11 3 8b
12 3 7c
shall be aggregated into the form:
id t.a t.b t.
