I am trying to find a formal reference and more details to this equation:
I saw it in this Nature Genetics paper (Online Methods section), by Park et al. (2010). This equation determines the contribution of a SNP to the genetic variance of a trait or effect size (ES), taking into account its regression effect (Beta) and allele frequencies (f).
I have searched in books, articles and throughout the internet, but found nothing.
Could someone provide a more detailed reference or explanation about it?