Table 3.
Summary of models fitted with corresponding model selection criteria.
| Model | Diagonal Distribution | Parameter | 2LL | AIC | BIC | |
|---|---|---|---|---|---|---|
| 1 | BP | NO | 33 | − 5819.10 | 11,624.76 | 11,797.96 |
| 2 | DP | NO | 32 | − 5779.38 | 11,622.76 | 11,790.71 |
| 3 | DIBP | Discrete(0) | 34 | − 4818.00 | 7447.40 | 7625.85 |
| 4 | DIBP | Discrete(1) | 35 | − 5054.14 | 7449.40 | 7633.10 |
| 5 | DIBP | Discrete(2) | 36 | − 5178.57 | 7451.40 | 7640.34 |
Models compared are Double Poisson (DP); Bivariate Poisson (BP); Diagonal Inflated Bivariate Poisson (DIBP);2LL: Log-likelihood; AIC: Akaike information criterion; BIC: Bayesian information criterion.