span class="n">index</span><span class="o">=</span><span class="n">index</span><span class="p">)</span>
    <span class="n">ts1</span> <span class="o">=</span> <span class="n">ts1</span><span class="o">.</span><span class="n">shift</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>

    <span class="n">ts0</span><span class="o">.</span><span class="n">plot</span><span class="p">()</span>
    <span class="n">ts1</span><span class="o">.</span><span class="n">plot</span><span class