Try this:

DFS <- lapply(split(seq(1, 144, by = 1), rep(1:12, each = 12)),
function(x)SDF1[x,]/SDF2)

On Wed, May 14, 2008 at 5:02 AM, Bert Jacobs <b.jacobs@pandora.be> wrote:

> Hi,
>
>
>
> I have two dataframes one with 144 rows and 160 columns (SDF1) and one
> with
> 12 rows and 160 columns (SDF2).
>
> Now I'm trying to divide rows 1:12 with SDF2, rows 13:24 with SDF2, rows
> 25:36 with SDF 2, .
>
> In S-Plus the following code works fine:
>
>
>
> DFS = SDF1[1:144,1:60] / as.vector(SDF2[1:12,1:160])
>
>
>
> but in R when I try to implement the formula I get  the following error:
>
> "/ only defined for equally-sized data frames"
>
>
>
> Can someone help me out on this one. Thx in advance.
>
> Bert
>
>
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>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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