SpherWave (version 1.2.2)

thresh.global: Global Thresholding of SW Coefficients

Description

This function calculates global thresholded SW coefficients.

Usage

thresh.global(x, lam, type)

Arguments

x

coefficients of multiscale SBF's

lam

thresholding value

type

the type of thresholding. This can be `"hard"', `"soft"' or `"Lorentz"'.

Value

tgamma

global thresholded SW coefficients

References

Donoho, D.~L. and Johnstone, I.~M. (1994) Ideal spatial adaptation by wavelet shrinkage. Biometrika, 81, 425--455.

Oh, H-S. (1999) Spherical wavelets and their statistical analysis with applications to meteorological data. Ph.D. Thesis, Department of Statistics, Texas A\&M University, College Station.

Oh, H-S. and Li, T-H. (2004) Estimation of global temperature fields from scattered observations by a spherical-wavelet-based spatially adaptive method. Journal of the Royal Statistical Society Ser. B, 66, 221--238.

See Also

mrs.comp.thresh.global.