svmpredict(low,tsx,low_model);
low_predict = mapminmax('reverse',low_predict,low_ps);
predict_low = svmpredict(1,win_num+1,low_model);
predict_low = mapminmax('reverse',predict_low,low_ps);
predict_low
%% 对于Low的回归预测结果分析
figure;
hold on;
plot(Low,'b+');
plot(low_predict,'r*');
legend('original low','predict low',2);
title('original vs predict','FontSize',12);
grid on;
figure;
error = low_predict - Low';
plot(error,'ro');
title('误差(predicted data-original data)','FontSize',12);
grid 