Open Access
Tabla 4
Resultados y validación de los modelos PCA y OPLS-DA.
| Parámetros modelos | Todos los datos | Vinos No-FML | Vinos ST |
|---|---|---|---|
| FML vs no-FML | SO2 vs ST | ST99 vs ST99-GSH | |
| Nº de observaciones | 45 | 27 | 18 |
| Nº de variables | 34 | 34 | 34 |
| R2X(cum) | 0,593 | 0,541 | 0,615 |
| R2Y | 0,986 | 0,962 | 0,973 |
| Q2(cum) | 0,973 | 0,904 | 0,717 |
| NCa | 1+2+0 | 1+2+0 | 1+3+0 |
| Permutacion tests (R2; Q2) | 0,338; – 0,537 | 0,533; – 0,852 | 0,881;– 0,830 |
| CV-ANOVA | < 0,05 | < 0,05 | < 0,05 |
| ROCb | 1,0 | 1,0 | 1,0 |
| Fisher’s probabilidad | 5,8×10 –13 | 2,1×10 –7 | 2,1×10 –5 |
| CCR (%)c | 100% | 100% | 100% |
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