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. 2014 Jun 20;63(5):753–771. doi: 10.1093/sysbio/syu039

Figure 12.

Figure 12.

A factor graph representing the binary character evolution model introduced in Figure 3. The factor graph additionally displays the probability distributions (the factors) as part of the model graph, for example, a Beta distribution, Bernoulli distribution and continuous time Markov chain (CTMC). A factor graph is always an undirected graph showing only the relationship between the variables and the corresponding distributions.