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plotsbar
2002 Jun 20
2
understanding the output
...0.01 `*' 0.05 `.' 0.1 ` ' 1
(Dispersion parameter for gaussian family taken to be 9.618818)
Null deviance: 247.27 on 19 degrees of freedom
Residual deviance: 173.14 on 18 degrees of freedom
AIC: 105.92
Number of Fisher Scoring iterations: 2
I need the mean and se to make an plotbar (I know to make a plotbar)
The mean is easy to get.
> tapply(peso,gen,mean)
1g 2g
4.8660 8.7164
The values is the same in estimate.
But the SE, when I try using tapply the SE is different os the SE of
estimates. look
> tapply(peso,gen,sd)/sqrt(tapply(peso,gen,length))
1g...