Decision thresholds and their difference between s-MSPRT and u-MSPRT.

<p>To ease visualisation, all panels show the exponential of the thresholds; <i>ϕ</i>_<i>s</i> = exp(<i>θ</i>_<i>s</i>) <i>ϕ</i>_<i>u</i> = exp(<i>θ</i>_<i>u</i>) for s- and u-MSPRT respectively. This yields positive values pertaining to the posterior (rather than negative values for the log-posterior). Panels a and b, respectively, show the lognormal and inverse Gaussian cases in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0124787#pone.0124787.g004" target="_blank">Fig 4a</a> for the parameter set Ω_<i>IV</i>. The red lines and symbols are for <i>ϕ</i>_<i>s</i>, the black lines and symbols for <i>ϕ</i>_<i>u</i>. In panel c, the box plot labelled ‘lognormal’ shows the median and quartiles (box lines), mean (cross) and one standard deviation of the differences <i>ϕ</i>_<i>u</i> − <i>ϕ</i>_<i>s</i> in panels a and b. Other bars show similar quantities for the test distributions of the other MSPRT instantiations used to form <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0124787#pone.0124787.g004" target="_blank">Fig 4a</a>. Panel d is similar to panel c, except it pertains to differences in (exponential) thresholds for results in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0124787#pone.0124787.g004" target="_blank">Fig 4b</a>, with the parameter set Ω_<i>FV</i>.