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The expected value of a random variable; or a location measure for a sample.

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Covariate analysis comparing distributions / means of circular data

I am able to run a Watson-Williams test or a non-parametric Watson's U2 on just the circular data, but I believe that another variable will moderate the effect of the angular mean differences. …
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Covariate analysis comparing distributions / means of circular data

Instead of modeling the circular angles directly, a common approach is to project them onto a normal distribution, after which a variety of statistical tests (such as ANCOVA and mixed-effects models) …
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