[R] integrate function

Peter Dalgaard p.dalgaard at biostat.ku.dk
Wed Aug 25 22:44:09 CEST 2004


"Ronaldo Reis Jr." <chrysopa at insecta.ufv.br> writes:

> Is possible to integrate this diferential equation:
> 
> dN/dt = Nr(1-(N/K))
> 
> in R using the integrate() function?

No.
 
> Or any other diferential equation?

Only if the right hand side does not depend on the dependent variable
(N in this case) -- just plain integrals.

> If yes, how?
> 
> If no, anybody know any software on linux that make this?

The "odesolve" package in R. 

Possibly, there's also stuff in Octave but I haven't looked lately. 

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907




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