hello. This is my first post here.
I am trying to find an splus library for WINDOWS for the nls2 function. Does
one exist?
Library's for NLS2 for S-plus on unix/linux exist but I don't know how to
modify all the installation/program files to run on windows.
Any suggestions would help.
My goal is to use a system of differential equations to define my model and use
nls2 to do parameter estimation. What the nls2 library includes are some
functions that can take a symbolic representation of the system of differential
equations and converts/complies it somehow so that nls2 can use it. Then it
also has a function that lets me load the complied model file.
Alternatively, does anyone know how to define a model using differential
equations then using nls for parameter estimation? There is a package named
DeSolve that has diff eq solvers and examples of diff eqs, can I define my
system in a similar way as those functions in the deSolve package would and
then pass it to nls or nls2? I know I would need an objective function so that
would be the sum of squares of the residuals....
thanks
Z
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