cdouble</span>           <span class="Comment">## Range tolerance for covariance calculation Default: 1e-14</span>
  <span class="Identifier">maxiter</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">cint</span> <span class="Comment">## Maximum number of iterations.  If maxiter == MP_NO_ITER,</span>
                 <span class="Comment">##                     then basic error checking is done, and parameter</span>
                 <span class="Comment">##           