| Coefficient/ Statistic | Quadratic function | Exponential function | Power function | |||
| Hake | Blue whiting | Hake | Blue whiting | Hake | Blue whiting | |
| x | 1.98802 (0.0000) |
| 6.2841 e−0.5 (0.0263) |
|
|
|
| sq_x | −2.94291 e−0.6 (0.0000) |
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|
|
|
|
| xy | 1.83165 e−0.9 (0.1873) | −3.12827 e−0.6 (0.2005) | 7.13 e−0.12 (0.3646) | 8.2693 e−0.12 (0.1333) |
|
|
| y |
| 1.49868 (0.0000) |
| 2.85098 e−0.6 (0.0000) |
|
|
| sq_y |
| −8.21632 e−0.8 (0.2226) |
|
|
|
|
| xyL_x |
|
|
|
| 2.01014 e−0.12 (0.0000) |
|
| xyL_y |
|
|
|
|
| 2.03629 e−0.12 (0.0000) |
| R2 | 0.993225 | 0.985446 | 0.795283 | 0.870396 | 0.723472 | 0.742810 |
| R2 adjusted | 0.992661 | 0.984233 | 0.787094 | 0.865211 | 0.723472 | 0.742810 |
| log-likelihood | −300.2893 | −398.1802 | −83.93742 | −84.31655 | −87.99664 | −93.56849 |
| Rho | 0.488674 | 0.439072 | 0.967083 | 0.876967 | 0.985883 | 0.978454 |
| Akaike criteria (AIC) | 606.5787 | 802.3605 | 171.8748 | 172.6331 | 177.9333 | 189.1370 |
| Durbin- Watson | 0.990641 | 1.120075 | 0.062242 | 0.169199 | 0.068781 | 0.075548 |