se(),minos()</tt> etc...
<li> The <tt>minimizer(const char* package, const char* alg)</tt> provides a completely generic interface
     to all minimizers, where <tt>package</tt> is the package (minuit,GSLminimizer) and <tt>alg</tt> is the algorithm (migrad) to be used
</ul>
By default, <tt>RooMinuit</tt> is still used when <tt>RooAbsPdf::fitTo()</tt> is called, but can be overridden with
a <tt>Minimizer()</tt> named argument
<pre>
   // Minimization with MINUIT/MIGRAD through RooMinuit
   pdf->fitTo(data) ;