On Sep 10, 2010, at 5:44 PM, David Winsemius wrote:


On Sep 10, 2010, at 5:35 PM, Chien-Pang Chin wrote:

Hi all:



I'm looking for a package that similar to solver in MS. All I need is find a
r to satisfy R0=sum( , where t are from 1 to n and Xt are come from
another formula.

The most package I found were to max or min the obj. function. Is there any
package can do it?

If you minimize , you should get your answer.

Ooops, sorry. Make that:

abs( R0 - sum(r * Xt ) )  # or

( R0 - sum(r * Xt ) )^2



--
David.

Thanks.

    Peter


David Winsemius, MD
West Hartford, CT

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David Winsemius, MD
West Hartford, CT

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