<table class="dataframe">
<thead>
<tr style="text-align: right;">
<th></th>
<th>0</th>
<th>1</th>
<th>2</th>
</tr>
</thead>
<tbody>
<tr>
<th>0</th>
<td>1</td>
<td>1.1</td>
<td>a</td>
</tr>
<tr>
<th>1</th>
<td>2</td>
<td>2.2</td>
<td>b</td>
</tr>
<tr>
<th>2</th>
<td>3</td>
<td>nan</td>
<td>c</td>
</tr>
</tbody>
</table>