[19059] in s-news-athena
[S] Fw: nlregb inquiry
daemon@ATHENA.MIT.EDU (Ken Reckhow)
Fri Aug 27 11:22:00 1999
From: "Ken Reckhow" <reckhow@duke.edu>
To: <s-news@wubios.wustl.edu>
Date: Fri, 27 Aug 1999 11:12:40 -0400
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>
>I am using the nlregb routine for parameter estimation for a nonlinear
>function and would like to know the covariance matrix of the parameter
>estimates. The source code includes commented-out lines that would
>return the covariance matrix, but the matrix apparently is not created in
>the routine. Does anyone have any insights as to how to use this routine
>to obtain the covariance matrix? I realize that a similar routine nls
>returns this information, however it will not work for my problem because
>of encountering singularities in the function. Any help would be
>appreciated.
Mark Borsuk
Ken Reckhow
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