| Model Summary and Parameter Estimates | |||||||||
| Dependent Variable: Whole tree | |||||||||
| Equation | Model Summary | Parameter Estimates | |||||||
| R Square | F | df1 | df2 | p-value | Constant | b1 | b2 | b3 | |
| Linear | 0.967 | 294.540 | 1 | 10 | 0.000 | 34.252 | 2.156 |
|
|
| Quadratic | 0.997 | 1642.151 | 2 | 9 | 0.000 | 85.960 | −5.875 | 0.304 |
|
| Cubic | 0.997 | 1693.289 | 2 | 9 | 0.000 | 60.114 | 0.000 | −0.135 | 0.011 |
| The independent variable is Root. | |||||||||