lambda.global: Global Thresholding Value

Description Usage Arguments Value References See Also

Description

This function calculates global thresholding value for spherical wavelet estimator.

Usage

1
lambda.global(swd, policy, nthresh, value, Q)

Arguments

swd

an object of class ‘swd’

policy

threshold technique. At present the possible policies are ‘"universal"’, ‘"probability"’, ‘"fdr"’, ‘"Lorentz"’ and ‘"sure"’.

nthresh

the number of resolution levels to be thresholded in the decomposition

value

the user supplied threshold represented by quantile level of ‘"probability"’ policy.

Q

parameter for the false discovery rate of ‘"fdr"’ policy.

Value

lam

global thresholding value

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


SpherWave documentation built on April 14, 2017, 1:28 p.m.