RTMBdist (version 0.1.0)

zibinom: Zero-inflated binomial distribution

Description

Probability mass function, distribution function, and random generation for the zero-inflated binomial distribution.

Usage

dzibinom(x, size, prob, zeroprob = 0, log = FALSE)
pzibinom(q, size, prob, zeroprob = 0, lower.tail = TRUE, log.p = FALSE)
rzibinom(n, size, prob, zeroprob = 0)

Value

dzibinom gives the probability mass function, pzibinom gives the distribution function, and rzibinom generates random deviates.

Arguments

x, q

vector of quantiles

size

number of trials (zero or more).

prob

probability of success on each trial.

zeroprob

zero-inflation probability between 0 and 1

log, log.p

logical; return log-density if TRUE

lower.tail

logical; if TRUE, probabilities are \(P[X \le x]\), otherwise, \(P[X > x]\).

n

number of random values to return.

Details

This implementation allows for automatic differentiation with RTMB.

Examples

set.seed(123)
x <- rzibinom(1, size = 10, prob = 0.5, zeroprob = 0.5)
d <- dzibinom(x, size = 10, prob = 0.5, zeroprob = 0.5)
p <- pzibinom(x, size = 10, prob = 0.5, zeroprob = 0.5)