Playing with Datalib
HTML
<script src="//rawgit.com/ramnathv/ce8ff0851e79ab5facb1/raw/7a9496bcab14315d27fe45a07158c2de668d8361/companies.js"></script>
<script src="//vega.github.io/datalib/datalib.min.js"></script>
JavaScript
x = [0, 1, 2];
y = [1, 3, 5];
var pippo = dl.linearRegression(x, y);
console.log(pippo);