]</code> - site index at 50 year base age</p></li>
</ul><p><b>Model Parameters</b></p><div class="sourceCode"><pre><code>  family   genus       species     b_0      b_1      b_2    b_3   b_4     b_5
1 Pinaceae Pseudotsuga menziesii  2.60 -0.00726 -0.00458 -0.442  1.61 0.00468
2 Pinaceae Abies       grandis    2.71 -0.00367 -0.00455 -0.505  1.73 0.00473
3 Pinaceae Abies       concolor   2.71 -0.00367 -0.00455 -0.505  1.73 0.00473
4 Pinaceae Pinus       ponderosa  2.35 -0.00206 -0.00260 -0.622  3.10 0.00426</