Table 3.
Numbers of times each K-base density combination was chosen by the HQ criterion when fitting the true model (PH, AFT, PO) for selected configurations in Tables 1 and 2.
Base Density | Standard Normal | Standard Exponential | ||||||
---|---|---|---|---|---|---|---|---|
K | K | |||||||
f0(t) | n | Cens. rate | 0 | 1 | 2 | 0 | 1 | 2 |
True PH Model | ||||||||
lognormal | 200 | 25% | 873 | 43 | 19 | 11 | 33 | 21 |
Weibull | 200 | 25% | 9 | 0 | 35 | 854 | 74 | 28 |
gamma | 200 | 25% | 140 | 12 | 33 | 644 | 143 | 28 |
log-mixture | 200 | 25% | 239 | 26 | 721 | 0 | 0 | 14 |
gamma | 200 | 18% right, 82% interval | 302 | 28 | 8 | 645 | 12 | 5 |
log-mixture | 200 | 20% right, 80% interval | 505 | 62 | 241 | 9 | 6 | 177 |
True AFT Model | ||||||||
lognormal | 200 | 25% | 873 | 49 | 18 | 10 | 30 | 20 |
Weibull | 200 | 25% | 3 | 0 | 24 | 890 | 54 | 29 |
gamma | 200 | 25% | 65 | 16 | 49 | 624 | 212 | 34 |
log-mixture | 200 | 25% | 0 | 153 | 847 | 0 | 0 | 0 |
gamma | 200 | 20% right, 80% interval | 223 | 32 | 17 | 640 | 68 | 20 |
log-mixture | 200 | 18% right, 82% interval | 0 | 567 | 432 | 0 | 0 | 1 |
True PO Model | ||||||||
lognormal | 200 | 25% | 878 | 81 | 19 | 0 | 6 | 16 |
Weibull | 200 | 25% | 31 | 3 | 40 | 830 | 82 | 14 |
log-mixture | 200 | 25% | 0 | 225 | 774 | 0 | 0 | 1 |
log-mixture | 200 | 18% right, 82% interval | 0 | 620 | 350 | 0 | 6 | 24 |