PermEn, CondEn, XSampEn, SampEn2D, MSEn.</p>
</dd>
<dt>References:</dt><dd><dl class="simple">
<dt>[1] Joshua S Richman and J. Randall Moorman. </dt><dd><p>“Physiological time-series analysis using approximate entropy
and sample entropy.” 
American Journal of Physiology-Heart and Circulatory Physiology (2000).</p>
</dd>
<dt>[2]  Douglas E Lake, Joshua S Richman, M.P. Griffin, J. Randall Moorman</dt><dd><p>“Sample entropy analysis of neonatal heart rate variability.”
American Journal of Physiology-Re