【摘要】 本文论述了根据试验数据在绘图软件中不同坐标系统下的分布规律,来判别和选择试验数据曲线拟合关系式类型的方法——不同坐标系下试验数据线性规律判别法。利用该方法,不但可以提高数据曲线拟合的精度,而且快捷,直观。特别是对于需分段拟合的数据,在给出各段拟合关系式类型的同时,还可确定出各段间的分界点。更多还原

【Abstract】 The current paper reports on a method as how to select the formula type in experimental data fit by examining the distributions of the data in different coordinate systems of computer chart software——linear pattern distinguishing method in different coordinate systems. By this method, not only the precision of the fitted formula can be enhanced, but also the process of the selection will be simplified to a great extent. Especially when the regression of the data is required to separate into more than one part and single out the formula type of the regression, it can determine the separate positions.更多还原