The curve-fitting method is a common way to estimate parameter in the calculation of design annual runoff values base on hydrology series in theory,but the actual annual runoff series often have a certain extent auto-correction.
当前设计年径流的计算,一般都采用适线法做参数估计。
参考来源 - 考虑自相关影响的设计年径流适线法估计的统计试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
主要计算结果为适线法确定的参数X、CV和CS，以及任何指定频率的设计值XP。
The main calculation results are parameters of X, CV and CS for line fitting method and designed value XP of any assignment frequency.
在历史洪水存在不确定性情况下，以概率权重矩法估计的参数稳健性优于优化适线法。
Moreover, under the situation of uncertainties in large historical flood, the quantities estimated by probability weighted moments may be more robust than those by a optimal curve fitting method.
提出了在洪水频率计算时适线法中最小二乘方的一种新的求解方法，并对其特性进行分析。
A new method of least square is raised in curve fitting of flood frequency calculating and its specific properties are analysed.
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