General Beta distribution with in arbitrary limits?

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Pappu Murthy 2015-8-4

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评论： Jeff Miller 2018-8-17

I want to generate Beta Random numbers in interval 2 to 5; I want it to have parameters alpha = 3; and beta=2; and I want it to have a variance = 0.33; How do I do it? I know mean is 1/(1+2/3) =3/5 = 0.6 for interval 0 to 1. Rest I have no clue. Thanks in advance.

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Torsten 2015-8-5

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https://ww2.mathworks.cn/matlabcentral/answers/232361-general-beta-distribution-with-in-arbitrary-limits#answer_188292

http://www.mathworks.com/matlabcentral/fileexchange/7309-randraw

Best wishes

Torsten.

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David Stolz 2018-8-16

Does this also allow to determine the probability densities of data points under the assumption of a beta distribution with another domain than 0,1? I.e. is there a function like betapdf() for other domains? Thanks in advance

Jeff Miller 2018-8-17

Use a linear transformation of the 0,1 random variables to get them into whatever new range you want, i.e., y = a + b*beta01, where you choose a & b to get the desired new domain.

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