Table 5 Results of the equivalence test Northeast (NE) Variant of FVS for bole height (m) and the parameter estimates and fit statistics for Eq. [2]. Mean bias (MB; observed – predicted) and root mean square error (RMSE) were computed using the fixed effects only. Both mean difference and MB were computed as observed – predicted. The null hypothesis for the equivalence test is that μ 1 ≠ μ 2
SPPa | N | FVS–NE | Equation [2] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mean ± SE difference (m) | Result of equivalence test | b 20 | b 21 | b 22 | b 23 | b 24 | b 25 | MB (m) | RMSE (m) | ||
AB | 840 | 4.93 ± 0.13 | not rejected | –1.3767 | –0.0613 | –0.0408 | – | –1.2310 | 0.9215 | –0.0268 | 1.8829 |
AS | 250 | 2.70 ± 0.27 | not rejected | –4.5957 | –0.0449 | – | – | –0.2274 | 1.7595 | –0.0026 | 2.5730 |
BC | 206 | 2.93 ± 0.25 | not rejected | –7.2046 | –0.0490 | – | – | –0.2216 | 2.6474 | 0.0077 | 2.2417 |
BF | 121 | 6.03 ± 0.45 | not rejected | –5.7095 | –0.0991 | – | – | –1.1598 | 2.5493 | –0.0657 | 1.8356 |
EH | 605 | 8.48 ± 0.16 | not rejected | –12.3299 | –0.0654 | –0.0418 | – | –1.1709 | 4.7187 | –0.0341 | 1.6112 |
OH | 297 | 3.15 ± 0.23 | not rejected | –2.1695 | –0.0546 | – | –0.1961 | –0.5721 | 1.2364 | –0.1407 | 1.9742 |
OS | 431 | 5.03 ± 0.18 | not rejected | 0.0110 | –0.0160 | –0.0184 | –0.1176 | – | – | –1.0851 | 3.8629 |
RM | 783 | 5.27 ± 0.10 | not rejected | 0.7482 | –0.0322 | – | –0.1254 | –0.4321 | – | 0.7071 | 2.1710 |
RN | 310 | 9.04 ± 0.22 | not rejected | 0.0821 | –0.0206 | – | –0.1456 | –0.4580 | – | 0.3897 | 2.1899 |
SM | 1604 | 5.11 ± 0.09 | not rejected | –2.1520 | –0.0229 | – | –0.0701 | –0.2583 | 0.8273 | 0.4317 | 2.5170 |
SP | 443 | 8.85 ± 0.21 | not rejected | 0.8253 | –0.0604 | –0.0350 | – | –1.1086 | – | 0.6008 | 1.6807 |
WP | 329 | 8.98 ± 0.29 | not rejected | –4.3500 | –0.0437 | –0.0279 | – | –0.7877 | 1.6198 | –0.0769 | 1.6524 |
YB | 931 | 4.48 ± 0.09 | not rejected | –1.2995 | –0.0442 | –0.0316 | –0.0660 | –0.8534 | 0.8015 | –0.0228 | 1.7532 |