n class="s1">&#39;&#39;</span><span class="p">,</span> <span class="p">[</span> <span class="n">f</span><span class="o">.</span><span class="n">feature</span> <span class="k">for</span> <span class="n">f</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">features</span> <span class="p">])</span>
		<span class="n">fv</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span clas