[R-sig-eco] repeated measures with multivariate data

[Peter Solymos]

Hi Kay,
I meant to make permutations within time points, i.e. strata=time, and
not within locations (strate=locations). adonis do F-tests based on
sequential sums of squares from permutations, thus the non
independence of repeated measures can have an effect on p-values
associated with terms subsequent to the time variable.
Cheers,
Peter



On Sat, Jul 24, 2010 at 2:18 PM, Kay Cichini <Kay.Cichini at uibk.ac.at> wrote:
>
> hello peter,
>
> thanks for replying.
> if we stay with the before after design, where i only want to know whether
> multivariate response changed or not, you say it's ok to restrict
> permutations on pairs. but then why it does not solve the problem of
> dependence?
>
> yours,
> kay
>
> -----
> ------------------------
> Kay Cichini
> Postgraduate student
> Institute of Botany
> Univ. of Innsbruck
> ------------------------
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