estBetaParam: Estimate Beta Distribution Parameters

Description Usage Arguments Details References

View source: R/estdistparam.R

Description

Estimate parameters of a beta distribution using method of moments.

Usage

1

Arguments

mu

Mean of the beta distribution. mu must be between 0 and 1.

sigma

Standard deviation of the beta distribution. sigma cannot have a negative value.

Details

Beta(α,β) distribution has two shape parameters, α and β, estimated as:

α = [(1-mu)/sigma^2 - 1/mu] * mu^2

β = alpha * (1/mu - 1)

References

https://stats.stackexchange.com/questions/12232/calculating-the-parameters-of-a-beta-distribution-using-the-mean-and-variance


austinnam/modeltools documentation built on Aug. 3, 2019, 7:20 p.m.