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Fitting goodness statistics of regression models
| Models | Log likelihood | AIC | BIC |
| Poisson | −25012 | 50 053 | 50 168 |
| NB | −24128 | 48 289 | 48 411 |
| ZIP | −23912 | 47 884 | 48 113 |
| ZINB | −23854 | 47 771 | 48 008 |
AIC, akaike’s information criterion; BIC, bayesian information criterion; NB, negative binomial; ZINB, zero-inflated negaitve binomial; ZIP, zero-inflated poisson.
