title: Questions about set.seed() in R
body: <p>I understand what <code>set.seed()</code> does and when I might use it, but I still have many questions about the function. Here are a few:</p>
  
  <ol>
  <li>Is it possible to "reset" <code>set.seed()</code> to something "more random" if you have called <code>set.seed()</code> earlier in your session? Is that even necessary?</li>
  <li>Is it possible to view the seed that R is currently using?</li>
  <li>Is there a way to make <code>set.seed()</code> allow alphanumeric seeds, the way one can enter them at <a href="http://www.random.org/sequences/?mode=advanced" rel="noreferrer">random.org</a> (be sure you are in the advanced mode, and see "Part 3" of the form to see what I mean)?</li>
  </ol>