Description Usage Arguments Value References See Also

This function calculates global thresholding value for spherical wavelet estimator.

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

`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. |

`lam` |
global thresholding value |

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.

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