bp">self</span><span class="o">.</span><span class="n">labelPositive</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">labelNegative</span><span class="p">),</span> <span class="p">[</span> <span class="s1">&#39;linear&#39;</span><span class="p">,</span> <span class="s1">&#39;quadratic&#39;</span><span class="p">,</span> <span class="s1">&#39;cubic&#39;</span> <span class="p">][</span><span class="bp">self</