Re: [R] Population simulation.

2004-07-26 Thread Anon.
[EMAIL PROTECTED] wrote:

 Hello,

 can anyone tell me if R has any special function for simulating the 
structure
 of human populations? Something like the genetic algorithm?
 I need to simulate a sample of a population with a specific 
structure. Is
 there something on R that can help me?

As others have pointed out, you need to give us some more details. 
There is an artile about simulation of ecological dynamics in last 
December's R News, which may be of some help:
http://cran.r-project.org/doc/Rnews/Rnews_2003-3.pdf

If you're simulating something like a coalescence process, then it might 
be easier to use some specialist software.  In that case, googling with 
a few relevant terms might be the way to go.

Bob
--
Bob O'Hara
Dept. of Mathematics and Statistics
P.O. Box 68 (Gustaf Hällströmin katu 2b)
FIN-00014 University of Helsinki
Finland
Telephone: +358-9-191 51479
Mobile: +358 50 599 0540
Fax:  +358-9-191 51400
WWW:  http://www.RNI.Helsinki.FI/~boh/
Journal of Negative Results - EEB: http://www.jnr-eeb.org
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[R] Population simulation.

2004-07-24 Thread assuncao . senra


Hello,

can anyone tell me if R has any special function for simulating the structure 
of human populations? Something like the genetic algorithm?
I need to simulate a sample of a population with a specific structure. Is 
there something on R that can help me?

Thanks to everyone. 
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Re: [R] Population simulation.

2004-07-24 Thread Thomas Petzoldt
[EMAIL PROTECTED] wrote:
Hello,
can anyone tell me if R has any special function for simulating the structure 
of human populations? Something like the genetic algorithm?
I need to simulate a sample of a population with a specific structure. Is 
there something on R that can help me?
Please be more specific, what you want: What type of model or which 
state variables do you want to simulate? Differential equations, age 
stucture (Leslie matrix model) discrete event simulations of stochastic 
subsamples (individuals) ...

BTW genetic algorithms are commonly used to solve optimization problems 
and (at least in most cases) not for population models.

Thomas P.
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