[Taxacom] Zanderian throwaway line

Bob Mesibov mesibov at southcom.com.au
Mon Dec 20 21:45:04 CST 2010

Richard Zander wrote:

"It is a measure of the apparent certainty of a cluster (where 83% bootstrap is about 95% posterior probability from my simulations, depending on branch length)."

I hope this doesn't pass into folklore among the students you're hoping to wean away from cladistics, as in 'They say 83% bootstrap is 95% PP'. Not only are the two estimates unrelated, but neither has much to do with the 'science' of developing evolutionary hypotheses (sensu Zander), as opposed to using character data for evidence-based classifications.
Dr Robert Mesibov
Honorary Research Associate
Queen Victoria Museum and Art Gallery, and
School of Zoology, University of Tasmania
Home contact: PO Box 101, Penguin, Tasmania, Australia 7316
Ph: (03) 64371195; 61 3 64371195
Webpage: http://www.qvmag.tas.gov.au/?articleID=570

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