tput">view current version</a>.
</div>
<div id="diagnostic-mode-output" class="section level2">
<h2><span class="header-section-number">19.1</span> Diagnostic Mode Output</h2>
<p>Diagnostic mode prints the log posterior density (up to a proportion)
calculated by the Stan program for the specified initial values. For
each parameter, it prints the gradient at the initial parameter values
calculated by Stan’s program and by finite differences over Stan’s
program for the log probability.</p>
<div id="uncons