R help - Jul 2003 - ss's are incorrect from aov with multiple factors

Hi,
	I have been trying to work with error terms given back from aov to 
make confidence intervals.  However, the numbers seem to be incorrect.  
If there is more than one term in the ANOVA then the error terms can be 
inflated by the number of factors in the extra terms.  The F's are 
correct so it is right back to the SS.  I was wondering if this is 
standard practice for stats programs or unique to R?

On 11 Jul 03, at 21:20, John Christie wrote:
> Hi,
> 	I have been trying to work with error terms given back from aov to 
> make confidence intervals.  However, the numbers seem to be incorrect.  
> If there is more than one term in the ANOVA then the error terms can be 
> inflated by the number of factors in the extra terms.  The F's are 
> correct so it is right back to the SS.  I was wondering if this is 
> standard practice for stats programs or unique to R?
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
In what sense are the SSs "incorrect", exactly?  And what do you think
the "correct" values should be?

---JRG


John R. Gleason
Associate Professor

Syracuse University
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Syracuse, NY 13244-2340  USA             FAX:     315-443-4085

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