On 06/07/11 16:26, Lao Meng wrote:
If I have 3 groups,and for each group,I get the ratio(e.g. incidence rate).
Now I wanna
For crying out loud!!! Repeat after me: It's ***not*** ``wanna'',
it's ***want to*** .... ***want to*** .... ***want to***!!!!!!!
The word ``wanna'' is a colloquial contraction of ``want to''. It
is acceptable in *very* casual oral communication. It is ***NEVER***
acceptable in written communication, except in the context of
accurately rendering (verbatim) an oral communication (or perhaps
for the purpose of humour).
cheers,
Rolf Turner
compare 3 ratio pairwise,and get the corresponding p values,i.e:
group1 vs group2 ,p value=?
group1 vs group3 ,p value=?
group2 vs group3 ,p value=?
Which statistical test should be used?
Thanks a lot for your help.
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