Research Article

T-Dagum: A Way of Generalizing Dagum Distribution Using Lomax Quantile Function

Table 1

Simulation results of MLE.

ParameterEstimateSEAABRMSE

α = 1.5201.50200.00005490.0016100.00720
501.50130.00002040.0006600.00466
1001.50170.00001320.0003600.00357
2501.50200.00000320.0001200.00184
5001.50010.00000010.0000100.00010

β = 0.1200.03671.04431200.2227210.99604
500.14470.38897410.0873150.61741
1000.14370.19357870.0437770.43777
2500.15960.07657680.0174670.27617
5000.45000.00024550.0007000.01565

γ = 2.0202.01100.01425910.0260250.11639
502.01110.00536930.0102590.07254
1002.00130.00263160.0051040.05104
2502.00100.00107610.0020710.03274
5002.00010.00050100.0010000.02236

ϕ = 0.3200.30150.32869910.1249530.55881
500.30120.12376520.0492520.34827
1000.30110.06260440.0248950.24895
2500.29960.02460000.0099000.15653
5000.29990.00018040.0006000.01342

q = 0.01200.00020.06247540.0544760.24362
500.01540.02417510.0217680.15392
1000.01300.01197270.0108870.10887
2500.01160.00475060.0043500.06879
5000.01010.00000000.0000000.00000

u = 0.9200.90140.00001520.0008490.00379
500.90080.00000520.0003190.00226
1000.90050.00000210.0001440.00144
2500.90020.00000120.0000700.00111
5000.90010.00000100.0000010.00000