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Article #256

Re: [S] test whether a density is unimodal

#256
From: ashley17061
Date: Sun, 16 Sep 2012 13:04
33 lines
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On Friday, September 8, 2000 8:52:49 AM UTC-4, "Siwik, Thomas" wrote:
> Dear all,
> 
> I have got a statistical question concerning a test about the consistency 
> of a density function.
> 
> Consider a real valued time series of prices. I would like to test, whether 
> the (conditional) density of price changes is unimodal with a maximum at 
> zero. The density comes from a kernel estimation with a Gaussian kernel.
> 
> Has someone an idea how to do the test?
> 
> Thank you
> Thomas Siwik
> WEDIT Deloitte & Touche
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Hello,

I realize that this is a dated post now, but I'd be grateful if anyone could please point me to a reference (or original citation in if possible) for the coefficient of bimodality given by Michael Axelrod, coefficient of bimodality = (1+ skewness^2)/(kurtosis + 3)? 

Thank you and have a swell day,
Ashley
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Subject: Re: [S] test whether a density is unimodal
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