Simulate a biting process to result in a negative-binomially distributed cumulative number of bites per person over days
.
The biting process for each person is a Poisson process with individual gamma-distributed rates.
Because the negative binomial distribution arises as a compound Poisson-Gamma distribution, it will also arise from independent Poisson processes each with gamma-distributed rates,
because the expected value of a Poisson process is also Poisson.
This calls gammaRates
.
SimBite_MeanBites(nH, meanNumberBites, days = 365, shape = 5, plot = TRUE)
nH | number of humans |
---|---|
meanNumberBites | population mean number of bites (over time period equal to |
days | number of days |
shape | shape parameter of gamma-distributed variation in individual biting rate (higher values lead to more normally distributed cumulative biting counts) |
plot | visualize biting distribution and negative binomial fit |
a list of length nH
; each element is the arrivial times of bites on that individual