| prop.table {base} | R Documentation | 
This is really sweep(x, margin, margin.table(x, margin), "/")
for newbies, except that if margin has length zero, then one
gets x/sum(x).
prop.table(x, margin = NULL)
x | 
 table  | 
margin | 
 index, or vector of indices to generate margin for  | 
Table like x expressed relative to margin
Peter Dalgaard
m <- matrix(1:4, 2) m prop.table(m, 1)