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TableĀ 4 Relative model errors (%) in estimates of the mean per tree above-ground tree biomass with actual (ACT), refitted (REFIT), recovered (RECOV), and robustly recovered (RREC) covariance matrices for the parameters in the biomass equations in TableĀ 1

From: Model errors in tree biomass estimates computed with an approximation to a missing covariance matrix

Species Model Weights? ACT REFIT RECOV RREC
BEECH LIN No 11.5 14.0 12.3 12.8
NLIN No 8.7 9.1 8.0 8.4
LIN Yes 4.7 8.8 7.8 11.6
NLIN Yes 4.4 6.6 6.9 9.4
SPRUCE LIN No 9.8 8.4 7.2 7.4
NLIN No 7.0 6.6 5.4 5.6
LIN Yes 6.2 10.0 5.4 7.4
NLIN Yes 5.6 8.5 4.8 6.6
PINE LIN No 6.9 5.9 4.9 5.1
NLIN No 5.3 4.7 3.8 4.0
LIN Yes 4.8 22.3 3.5 4.3
NLIN Yes 4.2 19.0 3.0 3.8