Using wavelets for data smoothing: A simulation study
Graham Horgan
Journal of Applied Statistics, 1999, vol. 26, issue 8, 923-932
Abstract:
Wavelet shrinkage has been proposed as a highly adaptable approach to signal smoothing, which can produce optimum results in some senses. This paper examines the performance of the method as a function of its parameters, by simulation for time series showing gradual, rapid and discontinuous variations, for a range of signal-to-noise ratios. Some general conclusions are drawn. The effects of the choice of wavelet, choice of threshold and choice of resolution cut-off are considered. The use of the residual autocorrelation as a diagnostic tool is suggested.
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:taf:japsta:v:26:y:1999:i:8:p:923-932
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DOI: 10.1080/02664769921936
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