s, which allows the
    binding of function methods of classes.<br><br>

<li>By default datasets are no cloned for fit operations to save time and memory.
    This change in procedure should save some time and memory, especially in toy MC
    studies where the overhead in setting up the likelihood can dominate the total
    time spent in fitting. The data cloning behavior of <tt>RooAbsPdf::fitTo()</tt>
    and <tt>RooAbsPdf::createNLL()</tt> can be explicitly set through the <tt>CloneData()</tt>
    named a