Table 20 MAE values of regression models fitted on data generated with ZINB regression model, n = 200
Dispersion | Proportion of Zeros | Poisson | NB | ZIP | ZINB |
|---|---|---|---|---|---|
0.01 | 0.1 | 1.0586 | 1.0591 | 1.0585 | 1.0565 |
0.3 | 3.1008 | 3.1002 | 3.1007 | 3.1018 | |
0.5 | 5.1761 | 5.1744 | 5.1759 | 5.1707 | |
0.7 | 7.2169 | 7.2130 | 7.2165 | 7.2146 | |
1 | 0.1 | 1.3805 | 1.3837 | 1.3802 | 1.3876 |
0.3 | 3.1443 | 3.1463 | 3.1426 | 3.1504 | |
0.5 | 5.1854 | 5.1823 | 5.1841 | 5.1840 | |
0.7 | 7.2180 | 7.2091 | 7.2166 | 7.2132 | |
5 | 0.1 | 2.3519 | 2.3926 | 2.3592 | 2.4141 |
0.3 | 3.4632 | 3.5050 | 3.4640 | 3.5303 | |
0.5 | 5.2182 | 5.2268 | 5.2143 | 5.2361 | |
0.7 | 7.2641 | 7.2626 | 7.2581 | 7.2598 | |
10 | 0.1 | 3.1613 | 3.2489 | 3.1768 | 3.3383 |
0.3 | 3.9775 | 4.0793 | 3.9982 | 4.1287 | |
0.5 | 5.4267 | 5.5666 | 5.4403 | 5.5871 | |
0.7 | 7.3654 | 7.5561 | 7.3998 | 7.7825 |