[R] computation on a table

[Peter Dalgaard]

Claus Atzenbeck <claus.atzenbeck at freenet.de> writes:

> On Sun, 13 Nov 2005, Peter Dalgaard wrote:
> 
> > jim holtman <jholtman at gmail.com> writes:
> [...]
> > > > index <- match(colnames(table2), colnames(table1), nomatch=0)
> > > > t(t(table1[,index]) / table2[index != 0, drop=FALSE])
> [...]
> > or even
> >
> > > sweep(table1, 2, table2[colnames(table1)], "/")
> 
> Perfect. I was not aware of sweep. The R help pages I read to solve this
> problem did not refer to that.

So you didn't look at ?prop.table, I guess....

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