[R] Help on the association between two events
Han-Lin Lai
Han-Lin.Lai at noaa.gov
Thu Jun 1 15:33:31 CEST 2006
Dear R-users,
Could any give me a guidence to solve the following problem?
I have three balls A, B and C. I can pick A, B or C at the first
selection. At the second and third selections, I can either (i) pick
one of the remaining balls, or (ii) stop to pick any balls. Therefore,
I have a classification table:
1st 2nd 3rd n
A -- -- 9
B -- -- 3
C -- -- 5
A B -- 7
A C -- 1
B A -- 9
B C -- 2
C A -- 0
C B -- 3
A B C 5
A C B 6
B A C 8
B C A 9
C A B 3
C B A 2
My interest is on the estimation and test for the association between A
and B. In a special case, what is the assocaition measure between A and
B if the first pick is either A or B? Does anyone have done this kind
of analysis?
Thanks in advance.
Han-Lin Lai
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