><span class="gp">&gt;&gt;&gt; </span><span class="c1"># load the data file</span>
<span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">DoaProcessor</span> <span class="k">import</span> <span class="n">DoaProcessor</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">d</span> <span class="o">=</span> <span class="n">DoaProcessor</span><span class="p">(</span><span class="s1">&#39;./samples/sample.csv&#39;</span><span class="p">,</span><span class="mi">4</span><span class