estBetaParam: Estimate Beta Distribution Parameters
In austinnam/modeltools: Decision Modelling Tools
Description
Usage
Arguments
Details
References
Description
Estimate parameters of a beta distribution using method of moments.
Usage
1
estBetaParam(mu, sigma)
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.
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Description Usage Arguments Details References
Description
Estimate parameters of a beta distribution using method of moments.
Usage
1 | estBetaParam(mu, sigma)
|
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
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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