Prior_x_given_y {brr}

R Documentation

Prior predictive distribution of the count x in the treated group conditionally to the count y in the treated group

Description

Density, distribution function, quantile function and random generation for the conditional prior predictive distribution of x given y.

Usage

dprior_x_given_y(x, y, a, c, d)

pprior_x_given_y(q, y, a, c, d)

qprior_x_given_y(p, y, a, c, d)

rprior_x_given_y(n, y, a, c, d)

sprior_x_given_y(y, a, c, d, ...)

Arguments

x, q	vector of non-negative integer quantiles
y	count (integer) in the control group
a	non-negative shape parameter of the Gamma prior distribution on the rate \mu
c, d	non-negative shape parameters of the prior distribution on \phi
p	vector of probabilities
n	number of observations to be simulated
...	arguments passed to summary_beta_nbinom

Details

The prior predictive distribution of the count x is the Beta-negative binomial distribution with shape parameters a+y, d, c.

Value

dprior_x_given_y gives the density, pprior_x_given_y the distribution function, qprior_x_given_y the quantile function, rprior_x_given_y samples from the distribution, and sprior_x_given_y gives a summary of the distribution.

Note

Prior_x_given_y is a generic name for the functions documented.

Examples

barplot(dprior_x_given_y(0:10, 5, 3, 10, 20))
sprior_x_given_y(5, 3, 10, 20, output="pandoc")

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