A Perfect Smoother
Top Cited Papers
- 30 May 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 75 (14) , 3631-3636
- https://doi.org/10.1021/ac034173t
Abstract
The well-known and popular Savitzky−Golay filter has several disadvantages. A very attractive alternative is a smoother based on penalized least squares, extending ideas presented by Whittaker 80 years ago. This smoother is extremely fast, gives continuous control over smoothness, interpolates automatically, and allows fast leave-one-out cross-validation. It can be programmed in a few lines of Matlab code. Theory, implementation, and applications are presented.Keywords
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