Table 8 Convergence rates of regression models fitted on data generated with ZIP regression model
Sample Size | Proportion of Zeros | Poisson | NB | ZIP | ZINB |
|---|---|---|---|---|---|
50 | 0.1 | 100.0% | 98.4% | 100.0% | 96.8% |
0.3 | 100.0% | 100.0% | 100.0% | 97.9% | |
0.5 | 100.0% | 100.0% | 100.0% | 96.0% | |
0.7 | 100.0% | 100.0% | 100.0% | 95.0% | |
200 | 0.1 | 100.0% | 99.9% | 100.0% | 95.6% |
0.3 | 100.0% | 100.0% | 100.0% | 98.3% | |
0.5 | 100.0% | 100.0% | 100.0% | 96.7% | |
0.7 | 100.0% | 100.0% | 100.0% | 94.4% | |
600 | 0.1 | 100.0% | 100.0% | 100.0% | 95.0% |
0.3 | 100.0% | 100.0% | 100.0% | 97.4% | |
0.5 | 100.0% | 100.0% | 100.0% | 97.9% | |
0.7 | 100.0% | 100.0% | 100.0% | 94.9% | |
1000 | 0.1 | 100.0% | 100.0% | 100.0% | 95.2% |
0.3 | 100.0% | 100.0% | 100.0% | 99.4% | |
0.5 | 100.0% | 100.0% | 100.0% | 96.2% | |
0.7 | 100.0% | 100.0% | 100.0% | 95.0% |