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demkovitch
2004 Jan 14
2
nonlinear regression and Excel solver
...y I posted this question on s-news, so apologies to some for
the duplication.
> Please put aside your snobbery about Microsoft products for a moment.
>
> I am fitting population models to annual survey data for trout. For those of you familiar with ecological models, I am working in the Lefkovitch matrix framework; for those unfamiliar with that shorthand, the modeled variable is a vector of abundances of fish in five size classes, with a system of linear equations (represented by a matrix) governing survival, advancement from smaller to larger stages, and reproduction.
>
> So far, I...