collapsing alleles

Michael Braverman braver at magnolia.cs.berkeley.edu
Tue Jan 3 14:35:55 EST 1995


In article <D1L64t.16t at news.cis.umn.edu>,
Dean Flanders <dean at scrapie.med.umn.edu> wrote:
>
>Is there any software/protocols/papers/books that will help me in collapsing 
>alleles?  I have never done it, and would like to learn how to.
>
>Thanks!
>
>Dean
>

You may be interested in the following reference:

Braverman, M.S., "An Algorithm to Improve the Computational Efficiency
	of Genetic Linkage Analysis", COMPUTERS AND BIOMEDICAL RESEARCH,
	18, 24-36 (1985).

This article was inspired by Ott's original work on collapsing alleles,
but extends his ideas in two important ways (while still allowing you
to obtain the same likelihood ratio - not just an approximation):

	1) it allows for pedigrees of arbitrary structure.
	2) it allows for missing/partially known marker phenotypes.

Hope you find this helpful,

Michael Braverman
braver at cs.berkeley.edu



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