Dear Tony,
A mixed models is not a good idea if you have only two levels for sites and two
times two for phase.
The first problem is a mathematical problems. You are estimating variances
based on only two and four values. Which is very small, hence you will not get
reliable estimates of the va
Hi:
Why is phase nested within sites? Shouldn't sites and phase be crossed?
After all, there is one intervention (works) that purportedly affects the
river both upstream and downstream. Moreover, why is log(flow) being treated
as both a fixed and random effect?
Just curious,
Dennis
On Wed, Sep 1
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