I don't find the white noise to be any good evolutionary scenario: it's
nowhere continuous. It just reduces to the assumption of normal,
independent observations at the tips. Nothing fancy, then :)
Cecile.
On 01/31/11 11:53, Luke Harmon wrote:
I agree with Dave here. White noise has two parameters, mean and variance, and - to me -
is an interesting model to test. But I'm not sure it should be considered as a
"baseline."
One can link Brownian motion and white noise through the Ornstein-Uhlenbeck
model - BM is OU with alpha (constraint) parameter equal to zero, and WN is OU
with infinite alpha.
lh
On Jan 30, 2011, at 3:18 PM, David Bapst wrote:
...
--
Cecile Ane
Assistant Professor, University of Wisconsin - Madison
www.stat.wisc.edu/~ane/
CALS statistical consulting lab:
www.cals.wisc.edu/calslab/stat.html
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