如果其呈现线性关系，测试结果应该通过适当的统计学方法(例如，以最小二乘方来计算回归线)来确立。
If there appears to be a linear relationship test results should be established by appropriate statistical methods (e. g. by calculation of a regression line by the method of least squares).
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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