百分位数算法：通过输入，计算历史数据，得出最后的预警值。-Percentile algorithm: The input to calculate the historical data, resulting in a final warning value.

用于大坝安全预警模型的多元回归以及变量分离的程序。也可以用于其他非线性回归-Dam safety warning model for multiple regression and variable separation procedures. Can also be used for other non-linear regression.