Hello

I wish to calculate alpha and beta for use in the Beta Dist function for a non normal distribution.

Having searched the web and various fora I can only find formula used for calculating alpha and beta for normally distributed values.

eg

http://www.xycoon.com/beta.htm

I am looking for a way of calculating/estimating alpha and beta for skewed distributions. The explanation in Excel seems to assume that you already know what alpha and beta are.

Do you know of a way of calculating them in these circumstances?

Regards

Andrew

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