It is proposed that to testify the regression equation and the regression level, non-linear equation should be converted into linear equation and also that related coefficient, manifestation level and remaining standard difference rate should all be exploited for the same purpose.
对非线性回归方程,要化为线性方程,用相关系数、显著性水平、残余标准差率来检查回归方程和拟合程度。
in addition, via regression analysis of the experimental data, the correlation equation for calculating the heat transfer coefficient of the water film was obtained, its regression correlation coefficient r is 0.98 and the standard deviation is 7.5%.
另外,通过对实验数据回归得到了管外水膜传热系数计算关联式,回归相关系数R为0.98,标准偏差为7.5%。
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