s="bp">self</span><span class="o">.</span><span class="n">pm</span> <span class="o">=</span> <span class="nb">sum</span><span class="p">(</span><span class="n">dataset</span><span class="p">)</span> <span class="o">/</span> <span class="nb">len</span><span class="p">(</span><span class="n">dataset</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">pm</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">pm</s