span class="sd">        https://doi.org/10.1063/5.0020538</span>

<span class="sd">        The method iterates between two phases --a regime learning phase</span>
<span class="sd">        (optimization-based) and a causal discovery phase (PCMCI)-- to identify</span>
<span class="sd">        regime dependent causal relationships. A persistent discrete regime</span>
<span class="sd">        variable is assumed that leads to a finite number of regimes within which</span>
<span class="sd">        stationarity c