pyHub guide</a>
for more info on these permutation entropy variants.</p>
</div></blockquote>
<dl class="simple">
<dt>See also:</dt><dd><p>XPermEn, MSEn, XMSEn, SampEn, ApEn, CondEn</p>
</dd>
<dt>References:</dt><dd><dl class="simple">
<dt>[1] Christoph Bandt and Bernd Pompe, </dt><dd><p>“Permutation entropy: A natural complexity measure for time series.” 
Physical Review Letters,
88.17 (2002): 174102.</p>
</dd>
<dt>[2] Xiao-Feng Liu, and Wang Yue,</dt><dd><p>“Fine-grained permutation entropy as a meas