Estimating the probability of success and v parameter for COM Poisson Binomial Distribution
Source:R/COMPBin.R
EstMLECOMPBin.Rd
The function will estimate the probability of success and v parameter using the maximum log likelihood method for the COM Poisson Binomial distribution when the binomial random variables and corresponding frequencies are given.
Arguments
- x
vector of binomial random variables.
- freq
vector of frequencies.
- p
single value for probability of success.
- v
single value for v.
- ...
mle2 function inputs except data and estimating parameter.
Value
EstMLECOMPBin
here is used as a wrapper for the mle2
function of bbmle package
therefore output is of class of mle2.
Details
$$x = 0,1,2,...$$ $$freq \ge 0$$ $$0 < p < 1$$ $$-\infty < v < +\infty$$
NOTE : If input parameters are not in given domain conditions necessary error messages will be provided to go further.
References
Borges P, Rodrigues J, Balakrishnan N, Bazan J (2014). “A COM--Poisson type generalization of the binomial distribution and its properties and applications.” Statistics and Probability Letters, 87, 158--166.
Examples
No.D.D <- 0:7 #assigning the random variables
Obs.fre.1 <- c(47,54,43,40,40,41,39,95) #assigning the corresponding frequencies
#estimating the parameters using maximum log likelihood value and assigning it
parameters <- EstMLECOMPBin(x=No.D.D,freq=Obs.fre.1,p=0.5,v=0.1)
bbmle::coef(parameters) #extracting the parameters
#> p v
#> 0.5126844 -0.1631013