Comp geom problem?
Ray Haraf
rayharaf at home.com
Sat Oct 20 20:01:56 PDT 2001
Hello All,
Can someone help with either hints for analytical solution, if any, or heuristic in C (preferably in S) to solve the following? Given N observations to be placed into JK cells, my problem is to find a set of cut points J's and K's that maximizes
Z=[log(2\sum_j\sum_k(n_{jk}log n_{jk})
- 2\sum_k(n_{.k}log n_{.k})- 2\sum_j(n_{j.}log n_{j.}) + 2NlogN]/2 - [log(J-1)]/4 - [log(K-1)]/4 - [logN]/2
subject to:
1<J<N
1<K<N
\sum_j\sum_k(n_{jk}) = N
\sum_j(n_{jk}) = n_{.k}
\sum_k(n_{jk}) = n_{j.}
J, K, and n_{jk} are integers.
Word 97 version is available upon request.
Thanks.
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