The paper introduces two methods of calculating constant and coefficient of Numbers related formula; graphical method, least square method.
介绍了准数关联式中常数的两种求法：图解法、最小二乘法。
Closely related to the characteristics of road tourist transport, this paper comes up with a regular predictive model, Elasticity Coefficient Method, about regional total volume of tourist transport.
笔者结合公路旅游客运的特点，提出了地区旅游客运总量的“弹性系数法”的常规预测模型；
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