按一段时间顺序排列的一组数据序列,即可定义为时间序列。例如:按年度排列的农业产量;按月份排列的饲料库存;家禽、家畜的销售额;按天排列的某一作物害虫种群的数量变化等。在农业生产系统中,有许多问题可通过对过去资料的采集,利用前述的回归法建立预测模型。但有些问题则不易 A sequence of data arranged in a chronological order can be defined as a time series. Examples include: agricultural production by year; feed stocks by month; sales of poultry and livestock; changes in the number of pests per crop by day. In agricultural production systems, there are many problems that can be established by using the regression method described above, through the collection of past data. But some problems are not easy