Dear Uwe Ligges,




better

good

bad

Goup1

16

71

37

Group2

0

4

61

Group3

1

6

57

    My hypothesis is if the three groups,that is group1, group2,and group3,
have the same distributions on coloumns? If not, which one is difference
from which one?



On 7/20/07, Uwe Ligges <ligges@statistik.uni-dortmund.de> wrote:
>
>
>
> zhijie zhang wrote:
> > Dear  friends,
> >   My R*C table is as follow:
> >
> >
> >
> > better
> >
> > good
> >
> > bad
> >
> > Goup1
> >
> > 16
> >
> > 71
> >
> > 37
> >
> > Group2
> >
> > 0
> >
> > 4
> >
> > 61
> >
> > Group3
> >
> > 1
> >
> > 6
> >
> > 57
> >
> >    Can I test if there are statistical significant between Group1 and
> > Group2, Group2 and Group3, Group1 and Group2, taking into the multiple
> > comparisons?
>
>
> So what is you hypothesis? Statistical significance of what it to be
> tested?
>
> Uwe Ligges
>
>
>
> > The table can be set up using the following program:
> >
> > a<-matrix(data=c(16,71,37,0,4,61,1,6,57),nrow=3,byrow=TRUE)
> > Thanks very much.
> >
> >
>



-- 
With Kind Regards,

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Zhi Jie,Zhang ,PHD
Tel:86-21-54237149
Dept. of Epidemiology,School of Public Health,Fudan University
Address:No. 138 Yi Xue Yuan Road,Shanghai,China
Postcode:200032
Email:epistat@gmail.com
Website: www.statABC.com
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