[R] Fitting controlled released data

Uwe Ligges ligges at statistik.tu-dortmund.de
Mon Apr 11 17:03:21 CEST 2011

On 10.04.2011 21:22, EmaDaCuz wrote:
> Hi,
> I am new to the forum/mailing list. I have been using R for a while and I
> find it incredible.
> I was just wondering whether someone has ever written a library to calculate
> the best fit of experimental data to some controlled release models, having
> only the release cumulative drug release at given time points. For example,
> there is an extension for SigmaPlot
> http://www.sigmaplot.co.uk/products/sigmaplot/productuses/prod-uses15.php
> which allows rapid fitting of 5 standard model.

R is "better": Just fit an arbirary number of different models and 
choose the one hat fits your criterion best. I doubt that is sensible, 
but it is not hard to do that with arbitrary (rather than 5 specific) 
kinds of models.

Uwe Ligges

I prefer to use free
> software and therefore I rather use R than Sigma Plot.
> Is there anyone who can help?
> Thank you very much
> Marco
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