这是拟合得到的结果，可我不明白I怎么解释拟合的结果，希望能得到帮助，非常感谢！

> cop.gumbel.fit <- fit.copula(empcop.bs,family="gumbel",plot=T)

Iteration
0 : objective =
-3341.983

Iteration
1 : objective =
-3321.082

Iteration
2 : objective =
-3358.117

Iteration
3 : objective =
-3358.117

Iteration
4 : objective =
-3358.117

RELATIVE FUNCTION CONVERGENCE