title: Drop a list of columns from data frame
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/4605206/drop-columns-r-data-frame">Drop Columns R Data frame</a>  </p>
  </blockquote>
  
  
  
  <p>I have a list of variables I would like to drop from IRIS table as follow:</p>
  
  <pre><code>dropList &lt;- c("Sepal.Length", "Sepal.Width")
  </code></pre>
  
  <p>How I can use this list to drop from IRIS data frame? (I don't want to refer to positions explicitly)</p>
  
  <p>Thanks.</p>