title: Is there a statistics library for PHP?
body: <p>I need to find a polynomial regression line, and I'm using PHP - is there a library or 3rd part script that will do this for me? If it can do ANOVA as well that would be a bonus, but mainly, I need to find regression lines.</p>
  
  <p>I don't know how to calculate a polynomial trend line, and I suspect it would be too difficult for me to learn how to do it myself, so if someone else has a script I'd like to use it. I would also be willing to use another program, that can be called from php (so command line only - no gui) but I would prefer to stick to php.</p>