[R] Help re. Fitting non-linear dynamic model to time series data

Bert Gunter gunter.berton at gene.com
Tue Dec 23 06:12:03 CET 2014

Hey, read and follow the posting guide -- go through a tutorial or
two, post some code and data, perhaps. Also check out CRAN's time
series task view here:

You might also try stats.stackexchange.com , as this seems to have
more to do with statistics than R coding.



Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
Clifford Stoll

On Mon, Dec 22, 2014 at 12:14 PM, Ciaran Roberts
<ciaranroberts at hotmail.com> wrote:
> Hey I'm trying to fit the non-linear dynamical model as shown in the
> image to some time series data. The idea is also to utilize k-fold cross
>  validation to estimate the prediction error. The term Po will be
> assumed to be constant over a certain timer period and will have to be
> estimated for each time period.
> I have extensive experience coding but limited experience in R. I
>  understand what I'm trying to do but am unfamiliar with the packages or
>  how to fit the model and utilize k-fold cross validation, especially
> for time series data.
> Any help/guidance would be really appreciated.
> ______________________________________________
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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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