Path: news.mathworks.com!not-for-mail From: "Ulrik Nash" <uwn@sam.sdu.dk> Newsgroups: comp.soft-sys.matlab Subject: Mean of general Beta distribution Date: Mon, 5 Jul 2010 11:10:06 +0000 (UTC) Organization: The MathWorks, Inc. Lines: 9 Message-ID: <i0seie$4a3$1@fred.mathworks.com> Reply-To: "Ulrik Nash" <uwn@sam.sdu.dk> NNTP-Posting-Host: webapp-05-blr.mathworks.com Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: fred.mathworks.com 1278328206 4419 172.30.248.35 (5 Jul 2010 11:10:06 GMT) X-Complaints-To: news@mathworks.com NNTP-Posting-Date: Mon, 5 Jul 2010 11:10:06 +0000 (UTC) X-Newsreader: MATLAB Central Newsreader 2106050 Xref: news.mathworks.com comp.soft-sys.matlab:650424 Hi Everyone, This is I suppose is more a general maths question. I am working on a simulation where I would like to specify the upper and lower bounds of the Beta distribution, and at the same time be able to directly set the mean of the distribution, instead of indirectly via the shape parameters. I am aware of the mean of the Beta distribution, but only for lower and upper limits of 0 and 1. What is the general equation for the mean, involving the two shape parameters and the upper and lower limits of the distribution? Best Ulrik.