Copula-Based Probabilistic Hazard Assessment Model for Debris Flow Considering the Uncertainties of Multiple Influencing Factors

Table 6

Identification of best-fit copula function and copula parameters.

Copula	AIC value	θ
Clayton	−235.346	0.797
Frank	−244.087	2.808
Ali–Mikhail–Haq	−197.52	0.990
Gumbel–Houggard	−100.01	0.000

Note. Bold indicates the minimum AIC value among the four candidate copulas.