对于大盘指数的有效预测可以为从整体上观测股市的变化提供强有力的信息，所以对于上证指数的预测具有很大意义。本代码用Matlab对1990.12.20-2009.8.19-每天的开盘指数进行支持向量机回归分析，拟合效果较好。-For effectively predict the market index can provide a strong message to the observed changes in the stock market as a whole, so the forecast for the Shanghai Composite Index has great significance. The code in Matlab opening day of 1990.12.20-2009.8.19- index support vector machine regression fit better.