 of the
<tt>IntervalCalculator</tt> interface.  It uses the <tt>NeymanConstruction</tt> internally,
and enforces specific choices of the test statistic and ordering
principle to realize the Unified intervals described by Feldman and
Cousins in their paper Phys.Rev.D57:3873-3889,1998.
</p>
<p>
In an extension to the technique discussed in Feldman and Cousins paper,
the <tt>FeldmanCousins</tt> class also performs a "profile construction" if their are nuisance parameters.
In this case, the parameters of in