e internal nav-link" href="#split-the-data-by-tissue-so-that-we-can-use-a-separate-classifier-for-each-tissue">2. Split the data by <code class="docutils literal notranslate"><span class="pre">tissue</span></code> so that we can use a separate classifier for each tissue.</a></li>
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#randomly-split-the-data-into-origin-and-destination-data">3. Randomly split the data into <code class="docutils literal notranslate"><span class="p