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From: "AMMAL " <alanazi@ualberta.ca>
Newsgroups: comp.soft-sys.matlab
Subject: Hurst Exponent using Power Spectral Density
Date: Thu, 15 Nov 2007 23:15:55 +0000 (UTC)
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Hi all,
I am wondering if you could help me to estimate PSD from a 
discrete series that represents measurements versus Depth. 
after constructing PSD, i need to estimate Hurst Exponent 
by plotting PSD versus frequency on a log-log plot and get 
the slope.

The data looks like X(depth)= .1, .2,......., 
and X-axis values look like =0, .5, 1,......,100

your fast response is highly appreciated.

Ammal