I understand heritability (h2 ) in the 'narrow sense' as the "proportion of the genetic variance (VG) out of the total variance (VG + VE). How do I calculate variability and heritability using Anova output from SAS or Statistica?
Hello Gloria,
The answer depends on model complexity (in general, what factors are included in the anova model). Assuming just one independent variable/factor, which reflects the genetic component and is appropriately characterized as a between-subjects factor, then SS(factor) / SS(total) would give the proportion of total variance in the DV that is explained by the genetic factor. This is the same as an eta-squared statistic.
If you have in mind a specific model, perhaps if you could explain it in more detail, someone could furnish a more focused answer to your query.
Good luck with your work.
Go to z-library, google instructions for z-library use prior to going to the site itself.find a introduction to genetic analysis or population genetics. Even better would be Kempthorn's Genetic statisics but that's been out print for years. This should help you considerably. The problem is you needed to specify the statistical model and it's not a standard ANOVA model if I recall correctly from about 50 years ago BTW use of z-library is free. Hope this helps you a little. Best wishes, David Booth
BTW ALSO try on Google genetic analysis
There are are a number of free PDF downloads Best wishes, David Booth
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