An Empirical Model for Underdispersed Count Data
Extract coefficients
Probability mass function of the three-parameter EWP
Probability mass function of the three-parameter EWP
Exponentially weighted Poisson regression model
Extract fitted values
Extract log likelihood
Estimate marginal means
Predict from fitted model
Print ewp model object
Print ewp model summary
Random samples from the three-parameter EWP
simulate from fitted model
Model summary
Extract estimated variance-covariance matrix
Count regression models for underdispersed small counts (lambda < 20) based on the three-parameter exponentially weighted Poisson distribution of Ridout & Besbeas (2004) <DOI:10.1191/1471082X04st064oa>.