function out1 = GumbelUgivenV_t(u,v,t,k)
% function out1 = GumbelUgivenV_t(u,v,t,k)
%
% Computes the value of the conditional Gumbel (U given V)
% copula cdf at a specified point
%
% INPUTS: u, a scalar of F(X[t])——这个是什么意思
%    v, a scalar of G(Y[t])——什么意思
%    t, the value of C(u|v)——什么意思
%    k, a scalar of kappa
%
% Saturday, 28 July, 2001
%
% Andrew Patton

ut = -log(u);
vt = -log(v);
out1 = (v.^(-1)).*exp(-(ut.^k+vt.^k).^(1/k)).*(1+(ut./vt).^k).^(1/k-1);这个是什么
out1 = out1-t ;为什么要-t
谢谢