First of all, we can see from Table 2: (1) Because the P value of F test is 0, the model population is statistically significant, the model is better; (2) R2 value is as high as 99.79%, the r2 value of the modified model is 99.75%, the fit is high, the model and actual value sits in this paper is very high, the model is better; Mse (residual standard deviation) is 0.03776, the value is small, the residual fluctuation is small, the model is more stable, the effect of regression is better.
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