Hello,
For an experiment, I selected plots of land within a forest either with
honeysuckle or without honeysuckle.  Thus, my main factor is fixed, with 2
levels: "honeysuckle present"(n=11) and "honeysuckle absent"(n=8).

Within each plot of land, I have a "trenched" subplot and an "untrenched"
subplot.

Within each subplot of every plot, I measured soil moisture.  Now I need to
do a nested Anova to compare the soil moisture values between treatments.
I don't really want to discard some data to make the sample sizes
balanced.

Does anyone know how to do a nested, unbalanced Anova in R?

Many thanks for your help!
-Steven Pfeiffer

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