模型

参数估计值

固定权重的威布尔分布–帕累托分布

$\begin{array}{l}\tau =1.8350\\ \phi =4.5284\\ \alpha =4.5446\end{array}$

可变权重的威布尔分布–帕累托分布

$\begin{array}{l}\tau =1.8350\\ \phi =4.5284\\ \alpha =0.6416\end{array}$

可变权重的威布尔–广义帕累托分布

$\begin{array}{l}\tau =1.8350\\ \phi =4.5248\\ \alpha =27.0705\\ \lambda =-0.1907\end{array}$