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rovinpiper
2011 May 03
3
ANOVA 1 too few degrees of freedom
I'm running an ANOVA on some data for respiration in a forest. I am having a
problem with my degrees of freedom. For one of my variables I get one fewer
degrees of freedom than I should.
I have 12 plots and I therefore expected 11 degrees of freedom, but instead
I got 10.
Any ideas?
I have some code and output below:
> class(Combined.Plot)
[1] "character"
>
2011 May 24
1
ANOVA Residual SS and MS of 0
I am trying to run an ANOVA on my soil respiration data, but I keep getting
residual sum of squares and mean square of zero.
As I understand it that would mean that the model terms explain all of the
variation in the response variable. That should be virtually impossible,
should it not?
Where do I begin troubleshooting such a problem?
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