[R] Dummy newbie question

Uwe Ligges ligges at statistik.uni-dortmund.de
Wed Apr 24 10:07:07 CEST 2002

Julien Barnier wrote:
> Hi,
> Excuse me for a so dummy question, but I really can't manage to do this
> very simple thing : I have a data frame, and I would like to calculate
> two vectors which contain the sums respectively of the rows and of the
> columns of the matrix.
> There is surely a very simple way to do that, but I didn't find it...

In  R <= 1.4.1:
 apply(x, 1, sum)
 apply(x, 2, sum)

In  R >= 1.5.0 (in development):

Uwe Ligges
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