 thank you ! :)

2008/6/5 Rolf Turner <r.turner@auckland.ac.nz>:

>
> On 6/06/2008, at 1:08 AM, biologeeks wrote:
>
>  dear all,
>>
>> in the package pwr , there is the fonction power.anova.test which permit
>> to
>> obtain the power for a one-way ANOVA...but I'm looking for a way to
>> compute
>> the power of a multiway ANOVA.( find the 1-beta). Is it possible?
>>
>> do you have some ideas ?
>>
>
> The cumulative F distribution function pf in R allows for a non-centrality
> parameter, so you can calculate the power of any F-test, against any
> properly
> specified alternative hypothesis, if you know what you are doing.  (And if
> you
> don't know what you're doing, don't do it.)
>
>                cheers,
>
>                        Rolf Turner
>
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