normat: Utility functions to help deal with matrices Normalize a...
In BioGeoBEARS: BioGeography with Bayesian (and Likelihood) Evolutionary Analysis in R Scripts

Description Usage Arguments Details Value Note Author(s) References Examples

normat normalizes a square transition matrix, such that each row sums to 0, and the diagonal equals the negative of the sum of the rest of the cells in the row. This matrix can then be exponentiated by values of t (time or another measure of branch length) to produce transition probabilities for any given value of t.

1	normat(relative_matrix)

relative_matrix

A square matrix giving the relative probabilities/weights of transitions.

See Foster (2001) for a succinct summary of transition matrices and their exponentiation.

m A Q matrix, i.e. normalized transition matrix (Qmat)

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Nicholas J. Matzke matzke@berkeley.edu

http://phylo.wikidot.com/matzke-2013-international-biogeography-society-poster https://code.google.com/p/lagrange/

FosterIdiots

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