[R] ANOVA procedure on the sufficient statistics

[Michael Friendly]

>
>
>You can apply the trick that Prof. Dalgaard recently posted in response to a
>similar question (for one-way ANOVA).  For each cell, generate data as:
>
>y <- cell.mean + cell.sd * scale(rnorm(cell.count))
>
>Then generate the data frame to feed to aov.
>
>  
>
That will generate only approximately the same means and MSE, however.

Larsen's procedure generates a weighted data set that gives the same 
ANOVA table
as the raw data, but requires that the weight= argument be used in aov().
(weights are not supported in all related functions)

-Michael

-- 
Michael Friendly     Email: friendly at yorku.ca 
Professor, Psychology Dept.
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