Table 6 Results of the equivalence test of Northeast Variant (NE) of FVS for diameter increment (cm yr–1) and the parameter estimates and fit statistics for Eq. [3]. 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 μ1 ≠ μ2
SPPa | N | FVS–NE | Equation [3] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mean ± SE difference (m) | Result of equivalence test | b 30 | b 31 | b 32 | b 33 | b 34 | b 35 | MB (cm) | RMSE (cm) | ||
AB | 2974 | 0.23 ± 0.003 | not rejected | –3.4430 | 1.4219 | –0.0727 | –0.0250 | – | – | –0.0054 | 0.1508 |
AS | 521 | 0.20 ± 0.009 | not rejected | –6.1840 | 0.0195 | –0.0020 | –0.0211 | – | 1.800 | 0.0339 | 0.2030 |
BF | 365 | 0.23 ± 0.010 | not rejected | –2.5924 | 1.2056 | –0.0556 | –0.0064 | –0.2013 | – | 0.0488 | 0.1972 |
EH | 2750 | 0.19 ± 0.003 | not rejected | –1.7508 | 0.5775 | –0.0113 | –0.0057 | –0.1795 | – | 0.0126 | 0.1437 |
OH | 2145 | 0.12 ± 0.004 | not rejected | –1.5197 | 0.3231 | –0.0225 | –0.0286 | – | – | –0.0048 | 0.1685 |
OS | 456 | 0.16 ± 0.007 | not rejected | –3.4203 | 1.0599 | –0.0301 | –0.0183 | –0.0541 | – | –0.0060 | 0.1234 |
QA | 455 | 0.21 ± 0.011 | not rejected | –2.3591 | 1.0659 | –0.0653 | –0.0469 | – | – | 0.0239 | 0.2122 |
RM | 2502 | 0.18 ± 0.003 | not rejected | –4.1465 | 0.2889 | –0.0148 | –0.0156 | – | 0.8415 | 0.0157 | 0.1445 |
RN | 822 | 0.09 ± 0.005 | not rejected | –7.6829 | 2.7843 | –0.1017 | –0.0210 | – | – | 0.0359 | 0.1259 |
RO | 478 | 0.24 ± 0.011 | not rejected | –2.3680 | 0.8776 | –0.0537 | –0.0159 | – | – | 0.0356 | 0.2218 |
SM | 3799 | 0.19 ± 0.003 | not rejected | –2.6059 | 0.4614 | –0.0176 | –0.0156 | –0.1351 | 0.3294 | 0.0411 | 0.1616 |
SP | 1499 | 0.11 ± 0.003 | not rejected | –4.5654 | 0.3646 | –0.0098 | –0.0258 | – | 0.7272 | 0.0482 | 0.1259 |
WC | 332 | 0.10 ± 0.007 | not rejected | –2.8205 | 0.4290 | –0.0042 | –0.0111 | – | – | 0.0011 | 0.1108 |
WP | 3754 | 0.25 ± 0.004 | not rejected | –4.5354 | 0.9649 | –0.0208 | –0.0230 | –0.0986 | 0.6226 | 0.0237 | 0.2197 |
YB | 2586 | 0.11 ± 0.003 | not rejected | –1.0956 | 0.4043 | –0.0186 | –0.0123 | –0.1808 | – | 0.0043 | 0.1595 |