title: Trying to combine 2 data.frame on R with rbind and getting a error in match.names(clabs, names(xi)) : names do not match previous names
body: <p>Trying to combine 2 data.frame on R with rbind </p>
  
  <p><code>data.combined &lt;- rbind(train, test.survived)</code></p>
  
  <p>Getting a error in match.names(clabs, names(xi)) : names do not match previous names</p>