[R] how to divide each column in a matrix by its colSums?

[Erich Neuwirth]

sweep(m,1,rowSums(m),"/")
sweep(m,2,colSums(m),"/")




On 11/28/2010 9:55 PM, casperyc wrote:
> 
> In that case, there are values >1,
> which is clearly not what I wanted.
> 
> Thanks.
> 
> I think I should use prop.table
> 
>