SAVE (version 1.0)

normal,uniform: Auxiliary functions.

Description

Auxiliary functions.

Usage

uniform(var.name, lower, upper)
normal(var.name, mean, sd, lower, upper)

Arguments

var.name

The name of the variable whose prior distribution is being specified.

lower

The lower prior bound for var.name.

upper

The upper prior bound for var.name.

mean

The prior mean for var.name.

sd

The prior standard deviation for var.name.

Details

These functions are intended as a user-friendly way of specifying the type of priors assumed for the calibration parameters in the function bayesfit.

For example, in a problem with calibration parameters named "delta1" and "shift", a uniform(0,1) prior for "delta1" and for "shift" a normal density with mean 2 and standard deviation 1 truncated to the interval (0,3), the prior should be specified as

prior=c(uniform(var.name="delta1", lower=0, upper=1), normal(var.name="shift", mean=2, sd=1, lower=0, upper=3))