Marginal Posterior Probability Densities

<p>Probability densities for each of the parameters described in <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0030193#pbio-0030193-g001" target="_blank">Figure 1</a> are shown, as follows: (A) θ₁; (B) θ₂; (C) θ_A; (D) <i>t</i> (i.e., t/u); (E) t shown on a scale of years over the range corresponding to a maximum <i>t</i> value of 0.2; (F) <i>s;</i> (G) <i>m</i>₁; and (H) <i>m</i>₂. The analysis in which a high upper limit on the prior distribution for <i>t</i> was used is identified as “high <i>t_upper</i>,” while those analyses with a smaller upper limit on the prior distribution of <i>t</i> are identified as “low <i>t_upper</i>.” Each curve is based upon the results of multiple simulations over millions of Markov chain updates (see <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0030193#s4" target="_blank">Materials and Methods</a>), and is plotted over the specified prior range of that parameter.