Every wonder how regression works?

Here's a neat interactive graphic helping to visually explain how least squares regression works:

---

Back when the DSN editor was a student at Chicago, he learned Statistics and History of Statistics from Steve Stigler, who proposed a visual demonstration of least squares regression. Together they came out with a now-obsolete Mac version. Today, DSN is proud to announce a version that will run on any browser that does Flash.

The demonstration should be self-explanatory to anyone who understands simple regression, and if not, might suffice as a tutor. And if not, there is always the linear regression article in Wikipedia.

---

I am definitely a visual thinker and think this is a great tool for helping others to understand this technique of statistical analysis. Nicely done!

Hattip to Andrew Gelman.