Table 4 Parameter estimates their standard errors (in parenthesis) for the taper equations used in this study
Species | Model | b 1 | b 2 | b 3 | b 4 | b 5 | b 6 | b 7 | b 8 | b 9 |
|---|---|---|---|---|---|---|---|---|---|---|
Douglas-fir | M1 | 0.02435 (0.00349) | 0.85814 (0.04419) | 2.57379 (0.16020) | −5.55862 (0.21594) | 3.05029 (0.09678) | – | – | – | – |
M2 | 0.79314 (0.01036) | 1.02189 (0.00475) | 0.99754 (0.00011) | 1.10118 (0.0293) | −0.18022 (0.00679) | 1.19183 (0.07506) | −0.61055 (0.03841) | 0.15539 (0.00388) | – | |
M3 | 0.14030 (0.04284) | 0.72960 (0.02170) | 0.15440 (0.00481) | −0.12140 (0.02365) | 0.00124 (0.00008) | 0.02678 (0.00244) | −0.09579 (0.00215) | – | – | |
M4 | 1.04208 (0.00750) | 0.99771 (0.00344) | −0.03111 (0.00423) | 0.53788 (0.00776) | −1.01291 (0.01796) | 0.56813 (0.00622) | 4.96019 (0.12262) | 0.04124 (0.00125) | −0.34417 (0.01478) | |
M5 | 0.30853 (0.00476) | 0.08620 (0.00295) | 0.07768 (0.00184) | – | – | – | – | – | – | |
Western hemlock | M1 | 0.03080 (0.01520) | 0.42992 (0.19493) | 4.12143 (0.71334) | −7.85114 (0.96822) | 4.27438 (0.43611) | – | – | – | – |
M2 | 0.92336 (0.06729) | 1.00547 (0.02555) | 0.99796 (0.00053) | 1.05050 (0.18665) | −0.16240 (0.04297) | 0.24448 (0.42759) | −0.31429 (0.22831) | 0.30181 (0.01235) | ||
M3 | 1.84835 (0.14518) | 0.01014* (0.0756) | 0.00175* (0.01611) | −1.04746 (0.08274) | 0.0029 (0.00033) | 0.03483 (0.00922) | −0.13071 (0.00935) | – | – | |
M4 | 1.05981 (0.04743) | 0.99433 (0.0101) | −0.01684* (0.0174) | 0.64632 (0.03945) | −1.56599 (0.08468) | 0.74293 (0.0238) | 4.75618 (0.89389) | 0.0389 (0.00764) | −0.19425 (0.0826) | |
M5 | 0.04561 (0.00445) | −0.02362 (0.00204) | − 0.86616 (0.06912) | – | – | – | – | – | – |