available.
</p>

<h4>Redesigned SPlot class</h4>
<p>The RooStats SPlot implementation works with any RooAbsPdf.  The class has been redesigned for more
convenient use.  It also adds some helper functions to check that the sum of sWeights over species is 1 for each event and
the sum over events for a given species equals the yield for that species.
</p>

<h4>Plotting classes</h4>
<p>We have added new plotting classes: <tt>SamplingDistPlot</tt> and <tt>LikelihoodIntervalPlot</tt>.
In 1-d LikelihoodIntervalPlo