[R-sig-eco] (no subject)

Sarah Goslee sarah.goslee at gmail.com
Wed Jun 27 16:03:36 CEST 2012


Hi Nils,

Please use dput() to provide your data, and include the actual code
and error messages. I assume you actually mean the ez package? It's
important to provide a full explanation of the problem so that someone
can offer good advice.

Sarah

On Wed, Jun 27, 2012 at 9:56 AM, "Nils Gülzow" <Nils.Guelzow at gmx.de> wrote:
> Dear List,
>
> I have a problem with the ezANOVA package using for rm ANOVA or a problem with my statistic design of the experiment. (or  both ;-))
>
> My file looks like this (is also attached):
>
> sample  days        treatments           repl.  dispersal  gbiov/rich/evenness
> 1-36    7,14,21     synchron,asynchron   1-4    low,medium dependent variable
>        28,35,42    controll                    high
>
>
> I would like to compare within SSw (treatment,dispersal) over time (days= between, SSb)for the listed variables gbiov, rich, evenness (dv), of course a single analysis for each variable. I used the repl. column as the SS identifier for the replicates, so I have for each combination of dispersal x treatment 4 replicates.
>
> My problem is that for one combination (asynchron x low) I have only three replicates and by checking with ezDesign, I add the missing replicates by reseting to zero for each time point, but still I get error message, except when I add days to the within-SSw and omit between-SSb. But that makes no sence to me.
>
> analysis<-ezANOVA(data=..., dv=.(gbiov), wid=.(repl), within=.(treat,disp),between=.(days))
>
> Perhaps, the SS identifier makes no sence?!
>
>
>
> Thanks in advance for solving the problem
>
> Best,
> Nils
> --
>
>


-- 
Sarah Goslee
http://www.functionaldiversity.org



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