Official Journal of the Japan Wood Research Society
Table 1 The number of near-infrared (NIR) spectra used for calibration and prediction sets
Species | Sample type | Calibration set | Prediction set | Total |
|---|---|---|---|---|
P. densiflora for. erecta | Wood block | 160 | 80 | 240 |
Tablet | 40 | 20 | 60 | |
P. densiflora | Wood block | 160 | 80 | 240 |
Tablet | 40 | 20 | 60 | |
P. sylvestris grown in Russia | Wood block | 160 | 80 | 240 |
Tablet | 40 | 20 | 60 | |
P. sylvestris grown in Germany | Wood block | 160 | 80 | 240 |
Tablet | 40 | 20 | 60 | |
Total | 800 | 400 | 1200 | |