flat: The Improper Uniform Distribution

In nimble: MCMC, Particle Filtering, and Programmable Hierarchical Modeling

The Improper Uniform Distribution

Description

Improper flat distribution for use as a prior distribution in BUGS models

Usage

dflat(x, log = FALSE)

rflat(n = 1)

dhalfflat(x, log = FALSE)

rhalfflat(n = 1)

Arguments

x	vector of values.
log	logical; if TRUE, probability density is returned on the log scale.
n	number of observations.

Value

dflat gives the pseudo-density value of 1, while rflat and rhalfflat return NaN, since one cannot simulate from an improper distribution. Similarly, dhalfflat gives a pseudo-density value of 1 when x is non-negative.

Author(s)

Christopher Paciorek

See Also

Distributions for other standard distributions

Examples

dflat(1)

nimble documentation built on Sept. 11, 2024, 7:10 p.m.