title: How to delete specific characters from a string in a PySpark dataframe?
body: <p>I want to delete the last two characters from values in a column.</p>
  <p>The values of the PySpark dataframe look like this:</p>
  <pre><code>1000.0
  1250.0
  3000.0
  ...
  </code></pre>
  <p>and they should look like this:</p>
  <pre><code>1000
  1250
  3000
  ...
  </code></pre>