title: Combine a list of data.tables
body: <p>Is there a specific method for combining a list of data.tables in R?</p>
  
  <p>I have a list of ~20 data.tables, each with around 1 million rows, and would like to combine them into one data.table with 20 million rows.</p>
  
  <p>I've been doing it with </p>
  
  <pre><code>Reduce('rbind', data.table)
  </code></pre>
  
  <p>but it takes a while.</p>
  
  <p>Tnx!</p>