Exploration of Use of Copulas in Analysing the Relationship between Precipitation and Meteorological Drought in Beijing, China

Table 3

Parameter estimation and criteria results of copula fitting.

	Gumbel	Frank	Clayton
Parameter estimation	1.3869	3.069	0.8647
OLS	0.1181	0.0957	0.0153
MSE	0.0139	0.0092	0.0002
AIC	−3227.99	−3545.45	−6318.54
BIC	−3223.37	−3540.82	−6313.91