Omega Test

The "Omega Test" is a simplified operational mode of PhyloCSF that requires fewer pre-precomputed parameters about the phylogeny under analysis. In particular, while PhyloCSF requires both a phylogenetic tree and "empirical codon models" with thousands of parameters estimated from known coding and non-coding regions aligned in the species of interest, the "Omega Test" requires only a phylogenetic tree. On the other hand, the test is less accurate and slower than the standard PhyloCSF mode.

We have written a brief (dense) description of the mathematical details of the method.