R help - Sep 2009 - model simulation

Dear useRs,

Is there a package or a function able to simulate models with sets of
differential equations?
Where we could input our model and give R some value to start with and it would
generate the graphs?

Regards,
Rafael.


     
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Rafael Moral <rafa_moral2004 <at> yahoo.com.br> writes:
> 
> Dear useRs,
> 
> Is there a package or a function able to simulate models with sets of
differential equations?
> Where we could input our model and give R some value to start with and it
would generate the graphs?
> 
> Regards,
> Rafael.
> 

install.packages("deSolve")

it won't generate the graphs automatically, you have
to use standard R tools (plot, matplot, etc.)

On Sep 7, 2009, at 1:55 PM, Rafael Moral wrote:
> Dear useRs,
>
> Is there a package or a function able to simulate models with sets  
> of differential equations?
> Where we could input our model and give R some value to start with  
> and it would generate the graphs?
>
Your request seems a bit on the under-determined side, but perhaps  
this Petzold article will get you started:

"R as a Simulation Platform in Ecological Modelling "
http://www.cas.muohio.edu/%7Estevenmh/Rnews_2003-3.pdf   ## pages 8-16

And then for more worked examples, the JSS volume that he edited:

http://www.jstatsoft.org/v22

--

David Winsemius, MD
Heritage Laboratories
West Hartford, CT