tradaboost以分类正确与否进行权重更新，想做成回归加权重分析，求大神指教

Question

for l=1:M
% 训练支持向量机
Wc=[Ws;Wt];
Wc=Wc/(sum(Wc))';
svm = svmTrain('svc_c',X,Y,ker,C,Wc);
Ydt = svmSim(svm,xt); 
Yt=sign(Ydt);
Result = ~~abs(Yt-yt) ;               % 错误分类显示为1
p=Wt'.*Result;
e(l) = sum(p);