rval, which via the method <tt>UpperLimit</tt> returns to the user the upper limit value.
</li>
<li>The <tt>HypoTestInverter</tt> implements various option for performing the scan. <tt>HypoTestInverter::RunFixedScan</tt> will scan using a fixed grid the parameter of interest. <tt>HypoTestInverter::RunAutoScan</tt> will perform an automatic scan to find optimally the curve and it will stop when the desired precision is obtained.
The confidence level value at a given point can also be done via  <tt>HypoTestIn