[R] (no subject)

[ERICK YEGON]

Hi Gurus, i have a small problem with working with graphs on R.
Say i have  data say bull-c(34,23,7,4) and i assign names to the elements in 
the brackets
if i do
Pie(bull) i get a pie chart of bull  togtjer with the names.
Question. How can i add values (percentages) in the graph

Thanks