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WOMBAT Example 23: Genetic groups and meta-founders
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This example provides an illustration on how to use WOMBAT to fit genetic
groups specifying either group proportions or unknown parent groups (UPG).
It also shows how to fit genetic groups explicitly (as separate random effects)
and implicitly (as UPG or "phantom parents").

Provided are *.par files to build H^{-1} (step 1) and to carry out a BLUP
run (step 2).

A: Explicit genetic groups; specify group proportions

A1: Explicit genetic groups; specify UPG

B: Implicit genetic groups, fitted as random; specify group proportions

B1: Implicit genetic groups, fitted as random; specify UPG

B2: as B1, but building H^{-1} excluding correction for G (Bradford et al)

C: Fit metafounders; no genetic groups

D: Fit metafounders + explicit GG (random); specify group proportions

