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Article #810Re: Measures of Multi-Modality
From: R0264
Date: Fri, 22 Jan 1993 18:59
Date: Fri, 22 Jan 1993 18:59
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In article <1jkb22INN8ob@pith.uoregon.edu> joe@decoy.uoregon.edu (Joe St Sauver) writes: > >I've got a researcher who is looking for a measure of >multi-modality (or "bi-polarity," if you will) such >that unimodal data would have a small score, and bimodal >or trimodal or n-modal data would have a large score. > >I'm at a loss for what to recommend -- any suggestions? > >Thanks, > >Joe St Sauver (joe@oregon.uoregon.edu) The sample measure of kurtosis would be one approach, but might not be sufficient. It is 4th central moment divided by square of 2nd, if I remember correctly, and has value 3 for normal, and smaller values for platykurtic distributions.
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Newsgroups: sci.math.stat Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!malgudi.oar.net!news.uakron.edu!news.csuohio.edu!vmcms.csuohio.edu!R0264 From: R0264@vmcms.csuohio.edu Subject: Re: Measures of Multi-Modality Message-ID: <16B5EC4CB.R0264@vmcms.csuohio.edu> Sender: news@news.csuohio.edu (USENET News System) Organization: CSU References: <1jkb22INN8ob@pith.uoregon.edu> Date: Fri, 22 Jan 1993 18:59:25 GMT Lines: 18