1、能够快速计算各测点的最大值、最小值、平均值、变幅、最大值对应的日期、最小值对应的日期；

2、除了取得最值所对应的日期外，还可以设置参数，取得最值对应的气温、降雨、上下游水位等等；

3、能够求的各测点全部时间内的最值及其对应的日期、温度等，即能够实现全系列特征值统计；

4、能够实现某一段时间或者某一年的特征值统计，即能够实现时间段的局部特征值统计。-1, able to quickly calculate the various measuring points maximum, minimum, average, amplitude, and the maximum corresponds to the date, the minimum value corresponding to the date　2, in addition to get the most value corresponding to the date, but also you can set the parameters, get the most value corresponds to the temperature, rainfall, water level upstream and downstream, etc.　3 to seek full-time all measurement points within the best value and its corresponding date, temperature, etc., that is able to achieve a full range of characteristic values of statistics　4, can be to achieve a certain period of time, or the characteristics of a certain year the value of statistics, that can lead to periods of local eigenvalue statistics.