Discussion 8

Webcrawling

The contents are from Brown CS1951A.

R version

Example

Time	Food	Calorie
breakfast	egg, milk, cereal, avocado	600
lunch	chicken breast, brown rice, lettuce	700
dinner	steak, sweet potato, broccoli	800

The following are the source code for this table.

<table rules="groups">
  <thead>
    <tr>
      <th style="text-align: left">Time</th>
      <th style="text-align: left">Food</th>
      <th style="text-align: right">Calorie</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td style="text-align: left">breakfast</td>
      <td style="text-align: left">egg, milk, cereal, avocado</td>
      <td style="text-align: right">600</td>
    </tr>
    <tr>
      <td style="text-align: left">lunch</td>
      <td style="text-align: left">chicken breast, brown rice, lettuce</td>
      <td style="text-align: right">700</td>
    </tr>
    <tr>
      <td style="text-align: left">dinner</td>
      <td style="text-align: left">steak, sweet potato, broccoli</td>
      <td style="text-align: right">800</td>
    </tr>
  </tbody>
  <tbody>
    <tr>
      <td style="text-align: left"> </td>
      <td style="text-align: left"> </td>
      <td style="text-align: right"> </td>
    </tr>
  </tbody>
</table>

Now lets’ use BeautifulSoup to parse the html.