LogNormalPriorCh {SpatialEpi}R Documentation

Compute Parameters to Calibrate a Log-normal Distribution

Description

Compute parameters to calibrate the prior distribution of a relative risk that has a log-normal distribution.

Usage

LogNormalPriorCh(theta1, theta2, prob1, prob2)

Arguments

theta1 lower quantile
theta2 upper quantile
prob1 lower probability
prob2 upper probability

Value

A list containing:

mu mean of log-normal distribution
sigma variance of log-normal distribution

Author(s)

Jon Wakefield

See Also

GammaPriorCh

Examples

# Calibrate the log-normal distribution s.t. the 95
param <- LogNormalPriorCh(0.2, 5, 0.025, 0.975)
curve(dlnorm(x,param$mu,param$sigma), from=0, to=6, ylab="density")

[Package SpatialEpi version 0.1 Index]