-parameter-at-a-time-stan-uses-hmc-which-moves-in-the-entire-space-of-all-the-parameters-at-each-step">BUGS performs MCMC updating one scalar parameter at a time, Stan uses HMC which moves in the entire space of all the parameters at each step</a></li>
  <li><a href="#differences-in-tuning-during-warmup" id="toc-differences-in-tuning-during-warmup" class="nav-link" data-scroll-target="#differences-in-tuning-during-warmup">Differences in tuning during warmup</a></li>
  <li><a href="#the-stan-language-is-dire