中文说明：将matlab40例中的核估计稍作改动，得到实用的代码！在matlab中用核估计去估计一个时间序列的分布，然后得到一个比较平滑的曲线，然后用这个曲线去预测未来的序列，常用于时间序列分析中，金融序列！
English Description：
Matlab40 in the case of kernel estimator for a little change, get practical code! In Matlab using kernel estimation to estimate the distribution of a time series, and then get a relatively smooth curve and then use this curve to predict the future of the series, often used in time series analysis, financial series!