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Article #489Re: Fitting normal distribution with skew.
From: Jeff Boyd
Date: Sun, 11 Oct 1992 17:44
Date: Sun, 11 Oct 1992 17:44
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763 bytes
What mathematical limits apply to luminosity? Is it bounded on one or both ends of its range? If so, I'd look into (linear functions of) the gamma and beta families, respectively. They can be fit using the method of moments or by iterative MLE. You can also look for simple transformations that eliminate the skew or introduce upper and/or lower bounds. jeff
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!cs.utexas.edu!torn!news.ccs.queensu.ca!qucdn!boydj From: BOYDJ@QUCDN.QueensU.CA (Jeff Boyd) Newsgroups: sci.math.stat Subject: Re: Fitting normal distribution with skew. Message-ID: <92285.134455BOYDJ@QUCDN.QueensU.CA> Date: 11 Oct 92 17:44:55 GMT Article-I.D.: QUCDN.92285.134455BOYDJ Organization: Queen's University at Kingston Lines: 11