[R] How to add rowSums into list?

Henrique Dallazuanna wwwhsd at gmail.com
Fri Jan 11 14:24:40 CET 2008


lapply(a, addmargins, 2)

On 11/01/2008, Lauri Nikkinen <lauri.nikkinen at iki.fi> wrote:
> Hi R-users,
>
> I have a list
>
> a <- list(one=matrix(rnorm(20), 5, 4), two=matrix(rnorm(20, 3, 0.5),5,4))
>
> How to add rowSums (calculated using lapply) to corresponding matrix
> in this list
>
> lapply(a, function(x) rowSums(x))
>
> ??
>
> -Lauri
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O




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