Table 1 Validation statistics obtained using validation data set for various techniques for predicting the 300 Index and Site Index. Shown are the mean error (ME), root-mean-square error (RMSE) and proportion of variance explained (R 2)
From: Characterising prediction error as a function of scale in spatial surfaces of tree productivity
Prediction techniquea | 300 Index | Site Index | ||||
|---|---|---|---|---|---|---|
ME | RMSE | R 2 | ME | RMSE | R 2 | |
PLS | − 0.04 | 4.02 | 0.56 | − 0.05 | 2.84 | 0.63 |
OK | − 0.01 | 3.40 | 0.69 | − 0.07 | 2.16 | 0.78 |
RK | − 0.04 | 3.29 | 0.71 | − 0.05 | 2.02 | 0.82 |