plot_beta_dist: Plot the beta distribution.

In dcgerard/updogAlpha: Using Parental Data for Offspring Genotyping

Description

This function will plot the beta distribution under two different parameterizations. The first one, with alpha and beta, is the usual parameterization of the beta. The second one parameterizes the beta in terms of its mean and overdispersion. Thus, either both alpha and beta must be specified, or both mu and rho must be specified.

Usage

plot_beta_dist(alpha = NULL, beta = NULL, mu = NULL, rho = NULL, ...)

Arguments

alpha	The shape1 parameter.
beta	The shape2 parameter.
mu	The mean parameter.
rho	The overdispersion parameter.
...	Anything else you want to pass to plot.default.

Details

We have the relationships

μ = α / (α + β)

and

ρ = 1 / (1 + α + β).

Thus, the inverse relationships are

α = μ(1 -ρ) / ρ

and

β = (1 - μ)(1 - ρ) / ρ.

Author(s)

David Gerard

dcgerard/updogAlpha documentation built on May 14, 2019, 3:10 a.m.