Re: [R] How to request AIC information from "lm" object?

From: ronggui <ronggui.huang_at_gmail.com>
Date: Fri 09 Jun 2006 - 16:41:18 EST

You can use AIC to get what you want.

#example from lm help page
> ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
> trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
> group <- gl(2,10,20, labels=c("Ctl","Trt"))
> weight <- c(ctl, trt)
> anova(lm.D9 <- lm(weight ~ group))
Analysis of Variance Table

Response: weight

          Df Sum Sq Mean Sq F value Pr(>F)
group      1 0.6882  0.6882  1.4191  0.249
Residuals 18 8.7293 0.4850
#get the AIC of lm model.
> AIC(lm.D9)

[1] 46.17648

2006/6/9, Michael <comtech.usa@gmail.com>:
> Can "lm" return AIC information?
>
> Thanks a lot!
>
> [[alternative HTML version deleted]]
>
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-- 
ٹ
Deparment of Sociology
Fudan University



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Received on Fri Jun 09 16:52:05 2006

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