elicitNGa: Elicitation of normal-gamma prior distribution by using...

In nclbayes: Functions, Demos and Examples of Bayesian Analysis and Basic MCMC

Description

Elicitation of normal-gamma prior distribution by using quantiles for mu and tau

Usage

elicitNGa(mup1 = 0.025, muquantile1, mup2 = 0.975, muquantile2,
  taup1 = 0.025, tauquantile1, taup2 = 0.975, tauquantile2)

Arguments

mup1	probability.
muquantile1	lower mup1-th quantile for mu.
mup2	probability.
muquantile2	lower mup2-th quantile for mu.
taup1	probability.
tauquantile1	lower taup1-th quantile for tau.
taup2	probability.
tauquantile2	lower taup2-th quantile for tau.

Value

Vector containing the parameters of the normal-gamma distribution.

Examples

b=20;c=10;g=0.15;h=6 # 5% and 95% quantiles are#'
muq1=qgt(0.05,2*g,b,h/(g*c));muq2=qgt(0.95,2*g,b,h/(g*c))
tauq1=qgamma(0.05,g,h);tauq2=qgamma(0.95,g,h)
#The following function determines the original values of b, c, g and h
elicitNGa(0.05,muq1,0.95,muq2,0.05,tauq1,0.95,tauq2)
elicitNGa(muquantile1=-1,muquantile2=1,tauquantile1=0.1,tauquantile2=1.1)

nclbayes documentation built on May 2, 2019, 5:53 p.m.