# dneymanA: The Neyman-A probability function In jointNmix: Joint N-Mixture Models for Site-Associated Species

## Description

Computes the probability function of the Neyman-A distribution

## Usage

 1 dneymanA(x, lambda1, lambda2, K, log = FALSE) 

## Arguments

 x vector of values lambda1, lambda2 parameters of the distribution K truncation value for the infinite summation log logical. If TRUE, the logarithm of the probabilities is returned

## Details

The Neyman-A distribution has probability function

\frac{e^{-λ_1}λ_2^{x}}{x!}∑_{k=0}^∞\frac{(λ_1e^{-λ_2})^kk^x}{k!}

and is an overdispersion model. The summation is truncated to K.

## Author(s)

Rafael A. Moral <rafael_moral@yahoo.com.br>, Clarice G. B. Demétrio and John Hinde

## Examples

 1 2 x <- 0:10 dneymanA(x, lambda1 = 2, lambda2 = 1.5, K = 50) 

jointNmix documentation built on May 2, 2019, 8:18 a.m.