Table 2 Coefficients of the mixed-effects diameter increment models
Modelling approach | |||
|---|---|---|---|
Predictor | Regression 1 | Regression 2 | Optimization |
Constant | –1.07845 | –2.24497 | 0.59149 |
ln(d) | 0.92911 | 1.49389 | 1.08691 |
d | –0.02068 | –0.04632 | –0.07473 |
BAL | –0.02316 | –0.03033 | –0.04719 |
√G | -0.28039 | –0.17988 | –0.32857 |
Step | – | 0.12559 | – |
Period 1 (1974–1975) | 0.45783 | –0.45064 | –0.27558 |
Period 2 (1975–1976) | 0.6025 | –0.03065 | –0.28573 |
Period 3 (1976–1977) | 0.42677 | –0.08639 | –0.10036 |
Period 4 (1977–1978) | 0.70895 | 0.24015 | 0.25214 |
Period 5 (1978–1979) | 0.53579 | –0.02277 | 0.09960 |
Period 6 (1979–1980) | 0.17169 | –0.16441 | 0.18685 |
Period 7 (1979–1983) | –0.08124 | 0.41545 | –0.03458 |
Period 8 (1980–1983) | 0.05176 | 0.32957 | –0.32634 |
Period 9 (1983–1990) | –0.14420 | 0.43467 | –0.06149 |
Period 10 (1983–1991) | –0.40772 | 0.47512 | –0.40811 |
Period 11 (1983–1996) | –0.78327 | –0.31606 | –0.56516 |
Period 12 (1990–1996) | –0.65995 | –0.22321 | –0.52835 |
Period 13 (1991–1996) | –0.87891 | –0.95390 | –0.65856 |