ppredBB: The Beta-Binomial Predictive Distribution

In vgharris3/predictiveInference: Predictive Inference Tools for Researchers

The Beta-Binomial Predictive Distribution

Description

ppredBB returns the predictive probability of <= x future successes out of M trials, given s observed successes out of a sample of

Usage

ppredBB(tpred, N, t, M, alpha = 1, beta = 1, lower = TRUE)

Arguments

tpred	vector of integers: number(s) of successes for which prediction is desired
N	number of observed independent binary variables
t	number of observed successes out of N
M	number of future observations for which prediction is desired (note x <= M)
alpha	shape factors for prior Beta distribution on theta
beta	rate factor for prior Beta distribution on theta
lower	logical; if TRUE (default), probabilities are P(R<=q) otherwise P(R>q)

Value

Beta-Binomial cumulative predictive probability

Examples

1

vgharris3/predictiveInference documentation built on April 23, 2022, 3:11 p.m.