17 April 2013

Local Regression v the Gaussian Mask

Introduction

On my previous post local-regression-loess-and-sun-spot I went to great lengths to explain how local regression works in practice. To my great delight I discovered that the UK Met office is using their own version of local regression. 

But, instead of calling it local regression they call it a Gaussian mask.

See if you can spot a difference or a similarity?

Met office gaussian mask

So, instead of referring to this process as a local regression, and acknowledging the work done by the Americans, a new term to describe the technique was created