Wilcoxon Signed Rank Test

Dear list,

Please forgive me if this is a dumb question. I want to compare a set of
paired data (pre and late). There are ties in pre and late. I searched
on line, some document says use wilcox.exact in R instead of
wilcox.test. Anyone has any experience using wilcoxon signed rank test
to share?

Thanks in advance.

platform i686-pc-linux-gnu
arch     i686
os       linux-gnu
system   i686, linux-gnu
status
major    2
minor    1.0
year     2005
month    04
day      18
language R

--
Jeanie (Jie) Na

Programmer Analyst II                       _   _    ___    _   _    ____
Department of Quantitative Health Sciences [_]-[_]  / - \  | |_| |  (_(_
Cleveland Clinic Foundation                 |   |  ( |_| ) )  _  (   _| )
Tel: (216)4451369                          [_]-[_]  \_\_\  |_| |_|  (___/