Table 2.
Cross-validation (CV) results for training of beginning of stem elongation support vector machine. Results are root mean squared errors (RMSEs) in growing degree days (GDDs) and relative root mean squared errors (rRMSEs).
| Training | Test | Test type | RMSE | rRMSE |
|---|---|---|---|---|
| All data | All data | 10-fold CV | 52.6 | 10.9% |
| Genotype subset | Unseen genotypes | 10-fold CV | 51.7 | 10.6% |
| Year-site subset | Unseen year-sites | 3-fold CV | 85.3 | 17.7% |
| Genotype subset in FIP18/FIP19 subset | Unseen genotypes in Delley19 | 10-fold CV | 89.8 | 18.5% |
| Genotype subset in FIP18/Delley19 subset | Unseen genotypes in FIP19 | 10-fold CV | 80.8 | 18.4% |
| Genotype subset in FIP19/Delley19 subset | Unseen genotypes in FIP18 | 10-fold CV | 79.7 | 16.7% |