[R] Applying a function on each columns of a matrix

Henrique Dallazuanna wwwhsd at gmail.com
Fri Jan 29 22:11:44 CET 2010


A example:

set.seed(123)
m <- matrix(rnorm(12), 3)
myParam <- rowMeans(m)
sweep(m, 1, myParam, FUN = "-")

This subtracts the myParam value in each column.

On Fri, Jan 29, 2010 at 6:59 PM, anna <lippelanna24 at hotmail.com> wrote:
>
> I had a quick look at the sweep function but didn't find a solution in it, I
> am going to look at it again then.
>
> -----
> Anna Lippel
> --
> View this message in context: http://n4.nabble.com/Applying-a-function-on-each-columns-of-a-matrix-tp1415660p1428193.html
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O



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