title: Retrieving F-test statistic on fixed effects joint significance in -xtreg-
body: <p>I am running the equivalent of the following regression:</p>
  
  <pre><code>sysuse auto, clear
  
  xtset rep78
  xtreg mpg weight, fe 
  </code></pre>
  
  <p>and I need to store the F-statistic on the F-test of joint significance of the model fixed effects (in this case, <code>F(4, 63) = 1.10</code> in the output).</p>
  
  <p>I inspected the post-estimation documentation of <code>xtreg</code> and searched online, but I couldn't find any information on this.
  Many thanks</p>