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Appendix 1
Ability of the newly-calibrated homographic model to predict data behind six published models. Species used to parameterize the published models are indicated, as well as the reference of publication. Model performance was assessed using both coefficient of determination (R2) and Root Mean Square Error of Prediction (RMSEP).
| Species | Reference of original data set | Published models | Homographic Model | |||||
|---|---|---|---|---|---|---|---|---|
| R 2 | RMSEP | R 2 | RMSEP | |||||
| Betula papyrifera Marsh. | Richardson et al. (2002) | 0.942 | 2.67 | 0.934 | 5.20 | |||
| Betula pendula Roth | Uddling et al. (2007) | 0.929 | 5.80 | 0.924 | 5.17 | |||
| Eucalyptus globules Labill. | Pinkard et al. (2006) | 0.955 | 9.14 | 0.953 | 11.32 | |||
| Eucalyptus nitens (H. Deane and Maiden) Maiden | Pinkard et al. (2006) | 0.876 | 12.82 | 0.943 | 11.07 | |||
| Solanum tuberosum L. | Uddling et al. (2007) | 0.455 | 13.07 | 0.451 | 14.22 | |||
| Triticum aestivum L. | Uddling et al. (2007) | 0.890 | 8.92 | 0.884 | 10.57 | |||