[R-sig-dyn-mod] dll option with dede of deSolve

[Thomas Petzoldt]

On 12/15/2012 6:29 AM, Tomas Radivoyevitch wrote:
> Wondering if someone could comment on the status of C coding the right hand
> sides of differential delay equations, i.e. using getLagValue in our C
> coded right hand sides.
>
> Tom
>

Hi Tom,

I don't have a ready made example at hand, but handling of lags resp. 
delays can be found in:

deSolve/src/lags.c

It contains the C internals of getLagValue and getLagDeriv that both 
call function "past" doing the main job. It should be not too difficult 
to implement similar function(s) in your own code. Note also the 
required header file deSolve.h.

Please let us know if you need any (small ;-) changes at the deSolve C 
level.

Thomas Petzoldt

-- 
Dr. Thomas Petzoldt
Technische Universitaet Dresden
Faculty of Environmental Sciences
Institute of Hydrobiology
01062 Dresden, Germany

E-Mail: thomas.petzoldt at tu-dresden.de
http://tu-dresden.de/Members/thomas.petzoldt