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coefficient
2012 Jul 25
1
Between-group variance from ANOVA
...and call this a group variance, but it seems to
me that isn't the right way to think about it.
I'm trying to calculate a heritability value for a trait in an organism,
defined as Vg/Vp, where Vg = variance due to genotype and Vp = total
variance. The model is p~g, or p[i,j] = intercept + g_coefficient[i] +
error[i,j]. But to get Vg, I think it is actually necessary to use a
different model, where g is modelled as a random variable (a random effect),
so the model can estimate a variance associated with it.
If anyone can add something to this, please do.
ted
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