R help - Apr 2004 - AIC and BIC

Hello

I'm with a doubt using BIC and AIC. I want to know if both of then are a way
to steem the best model to use. How i know which of then to choose?



Talita Perciano Costa Leite
Graduanda em Ci??ncia da Computa????o
Universidade Federal de Alagoas - UFAL
Departamento de Tecnologia da Informa????o - TCI
Constru????o de Conhecimento por Agrupamento de Dados - CoCADa

Hi,

----- Original Message ----- 
From: "Talita Leite" <talitaperciano at hotmail.com>
To: <r-help at stat.math.ethz.ch>
Sent: Tuesday, April 27, 2004 12:26 AM
Subject: [R] AIC and BIC

> Hello
>
> I'm with a doubt using BIC and AIC. I want to know if both of then are
a
way
> to steem the best model to use. How i know which of then to choose?
This is something that can be easily from by asking the dear old google...

But in general, there are various different model selection techniques and
using some sort of Information Criterion is just one of them.  Personally I
tend to go for BIC, as AIC does not take the number of observations into
account.  Having said that when I do model selection, I would do a few
different *IC's just to be sure...

Cheers,

Kevin