Dear all,

I have two matrices lets call them A and B. Each of which is a 100 x 3
matrix. What I do is take the corresponding row from each matrix and form
100 2 x 3 tables. If we call the column sums for each 2 x 3 n1, n2 and n3, I
would like to compute the following probability:

Basically the number of (n1 = a, n2 = b) in all the tables divided by the
number of tables. Its the probability that a table has a particular column
total.

So if A was

0  2  3
0  2  3
1  2  4
2  3  3


B was
1  0  3
1  0  2
1  2  4
2  3  3


The 2 x 3 tables would be:

0  2  3
1  0  3
Totals (1,2)  # first 2 totals

0  2  3
1  0  2
Totals (1,2)

1  2  4
1  2  4
Totals (2,4)

2  3  3
2  3  3
Totals (4,6)



The expected probabilities I should get are:

0.5, 0.5, 0.25 and 0.25 for each of the 2 x 3 tables.

Any help is greatly appreciated.....


-- 
Thanks,
Jim.

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