Daily Archives: February 12, 2011

Maybe we’re getting through … ?

WUWT has posted a slideshow by David Archibald (here as a pdf). It’s pretty dreadful.

Continue reading

Ridge Regression

Since the subject of “ridge regression” came up in discussions on RealClimate recently, I thought I’d give a very brief description of what the heck it is.

I tried to keep the math to a minimum, but I failed. There’s no getting around that fact that this is a mathematical topic so there’s lots of math anyway. But it’s still only a peek at the subject — I hope that it at least gives a little perspective on what ridge regression is and why it’s used. Oh well, at least the “rigor police” have been banished.

Continue reading