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cobin (version 1.0.1.3)

rmicobin: Random variate generation for micobin (mixture of continuous binomial) distribution

Description

Micobin distribution with natural parameter \(\theta\) and dispersion \(psi\), denoted as \(micobin(\theta, \psi)\), is defined as a dispersion mixture of cobin: $$ Y \sim micobin(\theta, \psi) \iff Y | \lambda \sim cobin(\theta, \lambda^{-1}), (\lambda-1) \sim negbin(2, \psi) $$

Usage

rmicobin(n, theta, psi, r = 2)

Value

random samples from \(micobin(\theta,\psi)\).

Arguments

n

integer, number of samples

theta

scalar or length n vector, natural parameter

psi

scalar or length n vector, between 0 and 1, dispersion parameter

r

(Default 2) This should be always 2 to maintain interpretaton of psi. It is kept for future experiment purposes.

Examples

Run this code

hist(rmicobin(1000, 2, 1/3), freq = FALSE)
xgrid = seq(0, 1, length = 500)
lines(xgrid, dmicobin(xgrid, 2, 1/3))

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