[R] Robust ANOVA with variance heterogeneity

[Kjetil Halvorsen]

On Fri, Oct 2, 2009 at 8:45 AM, David Winsemius <dwinsemius at comcast.net> wrote:
> There are multiple routes to "robust" statistics, but the quick answer to
> this question is probably friedman.test

I don't think friedman.test is robust to variance heterogeneity. It is
only robust to
non-normality.

Kjetil



>
> I seem to remember a CRAN Task View on the area of Robust Statistics.
>
> --
> David Winsemius
>
>
> On Oct 2, 2009, at 3:05 AM, Maike Luhmann wrote:
>
>> Dear list members,
>>
>> I am looking for an alternative function for a two-way ANOVA in the case
>> of
>> variance heterogeneity. For one-way ANOVA, I found oneway.test(), but I
>> didn't find anything alike for two-way ANOVA. Does anyone have a
>> suggestion?
>>
>> Thank you!
>>
>> Maike Luhmann
>> Freie Universität Berlin
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>