or actual magnitude (if an integer).</p></td>
    </tr>
    <tr>
      <th>a</th>
      <td><p>optional. Default 0.01. List of numeric values corresponding to SGNHT diffusion factors
(see Algorithm 2 of the original paper). One value should be given 
for each parameter in params, the names should correspond to those in params.
Alternatively specify a single float to specify that value for all parameters.</p></td>
    </tr>
    <tr>
      <th>nIters</th>
      <td><p>optional. Default 10^4L. Integer specifyi