Re: [R] How to estimate the parameters of differential equations fromdata

From: Frede Aakmann Tøgersen <FredeA.Togersen_at_agrsci.dk>
Date: Fri, 15 Feb 2008 10:03:19 +0100

Try the odesolve package or the nlmeODE package which builds on odesolve.

Best regards

Frede Aakmann Tøgersen
Scientist

UNIVERSITY OF AARHUS
Faculty of Agricultural Sciences
Dept. of Genetics and Biotechnology
Blichers Allé 20, P.O. BOX 50
DK-8830 Tjele

Phone: +45 8999 1900
Direct: +45 8999 1878

E-mail: FredeA.Togersen_at_agrsci.dk
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> -----Oprindelig meddelelse-----
> Fra: r-help-bounces_at_r-project.org
> [mailto:r-help-bounces_at_r-project.org] På vegne af Jannik Vindeloev
> Sendt: 15. februar 2008 09:34
> Til: r-help_at_r-project.org
> Emne: [R] How to estimate the parameters of differential
> equations fromdata
>
> Hello list
>
> I have a theoretical differential equation model (two coupled
> differential
> equations) describing the acidification of dairy cultures in milk:
>
> dX/dt = f(H, param)*X
> dH/dt = g(param)*dX/dt
>
> pH = -log10(H)
>
> I also have actual data of the same.
>
> I would like to estimate the parameters of the theoretical
> model from real data, but don't know how to go about it in R
> (I'm fairly new to R). Is there an R-package for this purpose?
>
> Any help from the list is highly appreciated.
>
> Thank you
>
> Jannik Vindeløv, Ph.D.
> Project Manager
> Dairy Culture Development
> Innovation
>
> P.O. Box 64
> Arpajon
> Cedex
> F-91292
> France
>
> Phone: +33 (0)1 6988 3636
> Direct Phone: +33 (0)1 6988 3629
> ______________________________________________
> R-help_at_r-project.org mailing list
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Fri 15 Feb 2008 - 09:07:56 GMT

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