Table 3 Estimated MSE for different estimators at \(p=10\).
From: New two parameter hybrid estimator for zero inflated negative binomial regression models
\(\rho ^2\) | n | \(\hat{\beta }_{\text {MLE}}\) | \(\hat{\beta }_{{k}}\) | \(\hat{\beta }_{{d}}\) | \(\hat{\beta }_{{K}}\) | \(\hat{\beta }_{k_m,d_m}\) | \(\hat{\beta }_{k_*,d_*}\) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
- | \(\hat{k}_1\) | \(\hat{k}_2\) | \(\hat{k}_3\) | \(\hat{d}\) | \(\hat{K}_1\) | \(\hat{K}_2\) | \(\hat{k_m}_1\) | \(\hat{k_m}_2\) | \(\hat{k_*}_1\) | \(\hat{k_*}_2\) | \(\hat{k_*}_3\) | \(\hat{k_*}_4\) | ||
0.75 | 30 | 1.85342 | 0.69558 | 0.76184 | 0.98603 | 1.10657 | 0.64753 | 0.73441 | 0.60203 | 0.77867 | 0.51503 | 0.57365 | 0.54396 | 0.53086 |
75 | 0.22758 | 0.20479 | 0.20903 | 0.21499 | 0.22017 | 0.18728 | 0.19775 | 0.18947 | 0.20429 | 0.18687 | 0.18885 | 0.18761 | 0.18722 | |
150 | 0.10114 | 0.09638 | 0.09729 | 0.09876 | 0.09962 | 0.09352 | 0.09552 | 0.09367 | 0.09665 | 0.09317 | 0.09358 | 0.09333 | 0.09327 | |
200 | 0.06893 | 0.06678 | 0.06721 | 0.06796 | 0.06825 | 0.06552 | 0.06651 | 0.06556 | 0.06702 | 0.06531 | 0.06553 | 0.06541 | 0.06538 | |
300 | 0.04919 | 0.04806 | 0.04829 | 0.04872 | 0.04882 | 0.04748 | 0.04801 | 0.04750 | 0.04825 | 0.04735 | 0.04748 | 0.04741 | 0.04739 | |
400 | 0.03734 | 0.03622 | 0.03645 | 0.03696 | 0.03703 | 0.03590 | 0.03636 | 0.03590 | 0.03657 | 0.03578 | 0.03589 | 0.03584 | 0.03583 | |
500 | 0.03416 | 0.03338 | 0.03355 | 0.03390 | 0.03393 | 0.03316 | 0.03348 | 0.03316 | 0.03363 | 0.03307 | 0.03316 | 0.03312 | 0.03311 | |
0.80 | 30 | 5.54582 | 1.49430 | 1.65732 | 2.36581 | 2.11015 | 1.65323 | 1.86221 | 1.33537 | 1.80061 | 0.93693 | 1.09997 | 0.99341 | 0.95684 |
75 | 0.32996 | 0.27330 | 0.28161 | 0.29827 | 0.31301 | 0.25327 | 0.26624 | 0.25676 | 0.27805 | 0.25287 | 0.25578 | 0.25425 | 0.25359 | |
150 | 0.18958 | 0.17393 | 0.17650 | 0.18260 | 0.18465 | 0.16973 | 0.17424 | 0.17024 | 0.17722 | 0.16882 | 0.16999 | 0.16937 | 0.16918 | |
200 | 0.12330 | 0.11594 | 0.11720 | 0.12065 | 0.12140 | 0.11487 | 0.11705 | 0.11503 | 0.11837 | 0.11437 | 0.11491 | 0.11462 | 0.11452 | |
300 | 0.09179 | 0.08842 | 0.08907 | 0.09081 | 0.09079 | 0.08832 | 0.08934 | 0.08833 | 0.08987 | 0.08796 | 0.08828 | 0.08812 | 0.08807 | |
400 | 0.06089 | 0.05942 | 0.05966 | 0.06041 | 0.06047 | 0.05938 | 0.05977 | 0.05938 | 0.05999 | 0.05925 | 0.05936 | 0.05932 | 0.05930 | |
500 | 0.05491 | 0.05395 | 0.05414 | 0.05468 | 0.05464 | 0.05407 | 0.05433 | 0.05407 | 0.05446 | 0.05397 | 0.05406 | 0.05403 | 0.05402 | |
0.85 | 30 | 6.56728 | 1.88698 | 2.12277 | 3.14040 | 2.68359 | 2.15358 | 2.44634 | 1.70661 | 2.37211 | 0.99288 | 1.23460 | 1.08072 | 1.02745 |
75 | 0.89786 | 0.62251 | 0.65898 | 0.74806 | 0.77423 | 0.54688 | 0.60764 | 0.56123 | 0.65953 | 0.52873 | 0.55087 | 0.53901 | 0.53358 | |
150 | 0.31022 | 0.26066 | 0.26868 | 0.28758 | 0.29396 | 0.24570 | 0.26008 | 0.24896 | 0.27076 | 0.24385 | 0.24767 | 0.24543 | 0.24460 | |
200 | 0.19200 | 0.17309 | 0.17654 | 0.18560 | 0.18632 | 0.17037 | 0.17639 | 0.17110 | 0.17997 | 0.16899 | 0.17076 | 0.16985 | 0.16956 | |
300 | 0.14125 | 0.13425 | 0.13542 | 0.13866 | 0.13907 | 0.13319 | 0.13520 | 0.13328 | 0.13644 | 0.13261 | 0.13315 | 0.13285 | 0.13276 | |
400 | 0.10282 | 0.09865 | 0.09943 | 0.10149 | 0.10156 | 0.09822 | 0.09954 | 0.09826 | 0.10024 | 0.09779 | 0.09818 | 0.09796 | 0.09790 | |
500 | 0.08420 | 0.08280 | 0.08291 | 0.08346 | 0.08368 | 0.08257 | 0.08272 | 0.08252 | 0.08293 | 0.08249 | 0.08251 | 0.08249 | 0.08249 | |
0.90 | 30 | 11.23432 | 2.50226 | 2.81360 | 4.27609 | 3.12831 | 2.86947 | 3.25319 | 2.32948 | 3.23653 | 1.36533 | 1.64556 | 1.46435 | 1.40243 |
75 | 1.25038 | 0.80267 | 0.86202 | 1.00369 | 1.00505 | 0.67935 | 0.77797 | 0.69858 | 0.85904 | 0.63096 | 0.67493 | 0.65044 | 0.64022 | |
150 | 0.65006 | 0.50087 | 0.52341 | 0.57096 | 0.58472 | 0.44548 | 0.48564 | 0.45510 | 0.51801 | 0.43745 | 0.44999 | 0.44208 | 0.43952 | |
200 | 0.33045 | 0.29759 | 0.30265 | 0.31440 | 0.31654 | 0.28804 | 0.29618 | 0.28811 | 0.30245 | 0.28496 | 0.28736 | 0.28593 | 0.28549 | |
300 | 0.19466 | 0.17868 | 0.18155 | 0.18879 | 0.18929 | 0.17512 | 0.18044 | 0.17572 | 0.18361 | 0.17381 | 0.17534 | 0.17443 | 0.17416 | |
400 | 0.14340 | 0.13597 | 0.13718 | 0.14027 | 0.14103 | 0.13403 | 0.13624 | 0.13418 | 0.13766 | 0.13351 | 0.13401 | 0.13371 | 0.13360 | |
500 | 0.12241 | 0.11988 | 0.12015 | 0.12108 | 0.12135 | 0.11920 | 0.11966 | 0.11915 | 0.12009 | 0.11902 | 0.11911 | 0.11905 | 0.11903 | |
0.95 | 30 | 36.21878 | 8.63277 | 9.91913 | 16.14723 | 11.63601 | 10.54136 | 12.23176 | 8.23854 | 12.01900 | 2.52115 | 2.86610 | 2.36424 | 2.47843 |
75 | 2.85360 | 1.48279 | 1.64042 | 2.01154 | 1.77588 | 1.21061 | 1.42786 | 1.19522 | 1.60167 | 0.89035 | 1.05074 | 0.95364 | 0.91532 | |
150 | 1.05143 | 0.63907 | 0.68526 | 0.78484 | 0.87672 | 0.53040 | 0.58881 | 0.54658 | 0.65829 | 0.51760 | 0.53492 | 0.52539 | 0.52029 | |
200 | 0.63922 | 0.48534 | 0.50894 | 0.55709 | 0.57327 | 0.41811 | 0.46240 | 0.43323 | 0.50043 | 0.41573 | 0.42771 | 0.41993 | 0.41721 | |
300 | 0.38632 | 0.30237 | 0.31348 | 0.33981 | 0.36118 | 0.27758 | 0.29316 | 0.28158 | 0.31067 | 0.27669 | 0.27987 | 0.27798 | 0.27706 | |
400 | 0.31383 | 0.27932 | 0.28469 | 0.29770 | 0.30114 | 0.26809 | 0.27788 | 0.26964 | 0.28520 | 0.26647 | 0.26880 | 0.26738 | 0.26689 | |
500 | 0.22813 | 0.20732 | 0.21062 | 0.21904 | 0.22156 | 0.20117 | 0.20737 | 0.20213 | 0.21173 | 0.20028 | 0.20162 | 0.20080 | 0.20048 | |
0.99 | 30 | 471.44082 | 33.96389 | 37.21547 | 74.54489 | 147.23154 | 199.13663 | 206.58615 | 33.68244 | 52.03945 | 20.75731 | 22.40880 | 19.62795 | 21.53869 |
75 | 9.26734 | 3.73552 | 4.29295 | 5.81935 | 3.14449 | 3.17459 | 3.88464 | 2.87097 | 4.30591 | 1.09324 | 1.43520 | 1.21468 | 1.12022 | |
150 | 5.38027 | 2.40336 | 2.73048 | 3.42002 | 2.55666 | 1.80657 | 2.23525 | 1.74929 | 2.55436 | 0.93574 | 1.19513 | 1.04166 | 0.96222 | |
200 | 3.50953 | 1.52628 | 1.72853 | 2.11602 | 1.94406 | 1.12380 | 1.36688 | 1.08862 | 1.56024 | 0.76500 | 0.88201 | 0.81426 | 0.77623 | |
300 | 2.26763 | 1.22949 | 1.35893 | 1.57164 | 1.54375 | 0.89267 | 1.06077 | 0.90635 | 1.22553 | 0.75445 | 0.83139 | 0.78068 | 0.76055 | |
400 | 1.36668 | 0.83759 | 0.90897 | 1.02014 | 1.05943 | 0.62065 | 0.71725 | 0.64662 | 0.82796 | 0.58812 | 0.62063 | 0.59866 | 0.59007 | |
500 | 1.22612 | 0.74860 | 0.80500 | 0.91168 | 0.98800 | 0.61750 | 0.68016 | 0.62183 | 0.75598 | 0.58787 | 0.60756 | 0.59512 | 0.59012 | |