Table 1 Parameters and Akaike information criterion of the linear and the quadratic model fitted to the data of Fig. 1.
Intercept | x | x2 | adjusted R2 | AIC | |
---|---|---|---|---|---|
linear model | 1.4438 | 0.6957*** | 0.8948 | 330.0762 | |
quadratic model | −4.4535* | 1.1168*** | −0.0046*** | 0.9201 | 317.5733 |