Figure 4From: PROCOV: maximum likelihood estimation of protein phylogeny under covarion models and site-specific covarion pattern analysisA frequency density distribution of Λ, the difference between covarion log-likelihood and RAS log-likelihood at sites, estimated under the general covarion model for a dataset (10,000 sites) simulated under the RAS model based on the EF tree (shown in Figure 1).Back to article page