[R] SUM,COUNT,AVG

[Dylan Beaudette]

Nice example. Does anyone know if it is possible to use multiple aggregating 
functions with the melt/cast functions?

Cheers,

Dylan


On Monday 06 April 2009, Christian wrote:
> A good package for this sort of questions is doBy, too.
>
> library(doBy)
> summaryBy( tpdv + UM + qta ~ Materiale ,data=data,FUN=c(sum,length,mean))
>
> regards, Christian
>
> > Hi,
> > I ve been searching a lot in internet..but I can t find a solution
> > Attached, you find a file.
> > I need for each (Materiale, tpdv, UM) to find sum,avg and count
> > My idea was to aggregate for the 3 parameters ..but I don t know how to
> > get the numeric value (SUM,COUNT,AVG) I need.
> > Can you help me?
> > thank you
> >
> > http://www.nabble.com/file/p22905322/ordini2008_ex.txt ordini2008_ex.txt
>
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-- 
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341