title: Slice 2nd half of data frame in R
body: <p>I can easily slice the 1st half (or any other percentage) of a data frame using:</p>
  
  <pre><code>library(dplyr)    
  
  df &lt;- data.frame(x = 1:10)
  
  df %&gt;% 
    slice(seq(0.5 * n()))
  </code></pre>
  
  <p>However, how can I slice the 2nd half of my data frame?</p>