class="paramdir">[in]</td><td class="paramname">nstep</td><td>: thinning of <a class="el" href="classMCMC.html" title="Markov Chain Monte Carlo base class. Implemented the basic and most general MCMC algorithms.">MCMC</a> to write to pchain </td></tr>
    <tr><td class="paramdir">[in,out]</td><td class="paramname">pchain</td><td>: thinned chain file with nburn and nstep applied, to be used for postprocessing : if given as non-empty array, the <a class="el" href="classMCMC.html" title="Markov Chain Monte Car