[thr,Sn_all,Sp_all,Hm]=evaluate_threshold('./train100to400/label6.mat','./train100to400/predict.csv');
subplot(2,1,1)
plot(thr,Sn_all,'--k',thr,Sp_all,'-.g',thr,Hm,'-b','LineWidth',2)
xlabel('threshold')
title('GroupS')

[thr,Sn_all,Sp_all,Hm]=evaluate_threshold('./train401to900/label6.mat','./train401to900/predict.csv');
subplot(2,1,2)
plot(thr,Sn_all,'--k',thr,Sp_all,'-.g',thr,Hm,'-b','LineWidth',2)
xlabel('threshold')
title('GroupL')