normprior: normprior - create a normal prior object

In ToxicR: Analyzing Toxicology Dose-Response Data

normprior - create a normal prior object

Description

Specify a normal prior for a ToxicR Bayesian model fit.

Usage

normprior(mean = 0, sd = 1, lb = -100, ub = 100)

Arguments

mean	mean of the prior
sd	sd of the prior distribution.
lb	lower bound on the distribution. Necessary for the optimization algorithms, To make sure it is a fully normal prior, make lb small relative to the mean/sd.
ub	Upper bound on the distribution. Necessary for the optimization algorithms, To make sure it is a fully normal prior, make ub large relative to the mean/sd.

Value

a normal prior model object. This object essentially a vector with the first element as 1 (for normal), the second element the mean, the third element the variance, the fourth and fifth elements the lower and upper bounds, respectively.

Examples

 # Normal Prior with mean 0,sd-1
 normprior(mean = 0, sd = 1, lb = -1e4, ub=1e4)

 # Truncated Normal prior, Truncated below at 0
 normprior(mean = 0, sd = 1, lb = 0, ub=1e4)

ToxicR documentation built on Dec. 28, 2022, 3:07 a.m.