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phyclust (version 0.1-9)

.em.method: EM methods/algorithms

Description

The varied EM algorithms are implemented in C. The first element is the default value. This is a read-only object and the elemental order is followed in C.

Usage

.em.method

Arguments

format

A character vector contains implemented EM algorithms in C.

Details

EM (default) stands for the standard EM algorithm, ECM stands for Expectation/Conditional Maximization algorithm, and AECM stands for Alternating ECM algorithm. The performance is roughly about AECM > EM ~ ECM which are dependent on the separations of data set.

References

Phylogenetic Clustering Website: http://thirteen-01.stat.iastate.edu/snoweye/phyclust/

Dempster, A. and Laird, N. and Rubin, D. (1977) Maximum Likelihood Estimation from Incomplete Data via the EM Algorithm, Journal of the Royal Statistical Society Series B, 39:3, 1-38.

Meng, X.-L. and Rubin, D. (1993) Maximum likelihood estimation via the ECM algorithm: A general framework, Biometrika, 80:2, 511-567.

Meng, X.-L. and van Dyk, D. (1997) The EM Algorithm --- an Old Folk-song Sung to a Fast New Tune (with discussion), Journal of the Royal Statistical Society Series B, 59, 511-567.

See Also

.show.option, .EMC, .EMControl, phyclust.

Examples

Run this code
.em.method

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