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In article <[EMAIL PROTECTED]>,
ZHANG Yan <[EMAIL PROTECTED]> wrote:
>Thanks for the comments. And sorry for the inclear question. I will
>re-state the problem in the following.
>Suppose that d is positive integer, 1 <= d <= D. A function is defined
>as follows C(d)=C1(d)+C2(d).
>And for any d in 1 to D-1, we have
> C1(d) >= C1(d+1)
> C1(d) <= C2(d+1)
>Then, I have to determine that C(d) has minimum value with an optimal
>value d_{op}, and to find d_{op}. I am wondering whether these
>conditions are sufficient and whether I should think about or add more
>conditions?
>Any suggestions are greatly appreciated. Thanks and Best Regards.
It is hard to see what can be done, as there are "natural"
statistical problems of this type for which it is desired
to get the maximum likelihood estimator (the problem does
not change if minimum is replaced by maximum) and every
order statistic it the location of a relative maximum.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
[EMAIL PROTECTED] Phone: (765)494-6054 FAX: (765)494-0558
