howardprior {LearnBayes}

Logarithm of Howard's dependent prior for two proportions

Description

Computes the logarithm of a dependent prior on two proportions proposed by Howard in a Statistical Science paper in 1998.

Usage

howardprior(xy,par)

Arguments

xy

vector of proportions p1 and p2

par

vector containing parameter values alpha, beta, gamma, delta, sigma

Value

value of the log posterior

Author(s)

Jim Albert

Examples

param=c(1,1,1,1,2)
p=c(.1,.5)
howardprior(p,param)