title: Remove rows from a data frame according to a range of row names
body: <p>I would like to remove from a data.frame all rows from, for example, row number 10 plus the subsequent 4 rows, i.e. from row 10 to row 14. </p>
  
  <p>The starting row for rows removing (in this case the row number 10) results from a test so that I saved the output of the test in <code>my_test</code> variable. Briefly I have to remove rows from <code>my_test</code> variable plus 4 rows. I tried: </p>
  
  <pre><code>myfile_cleaned &lt;- my_original_file[-c(test:test+4),]   
  </code></pre>
  
  <p>but it does not work. 
  Can anyone help me please?</p>