<t>Thanks. Let's see if I get it correct - Assume Gumbel copula with theta 1.85, there is a 90% probability that v < 0.958523 conditional on u = 0.91. But why set u > C(u,v) = 0.91?If I want to build a contour plot for, say Gumbel copula, how can I do it? Correct me if I am wrong, but my original id...