title: Scala filter on two conditions
body: <p>I would like to filter my data set on two conditions at once. </p>
  
  <p>Is it possible?  </p>
  
  <p>I want something like this:</p>
  
  <pre><code>mystuff = mystuff.filter(_.isX &amp;&amp; _.name == "xyz")
  </code></pre>