704 P.J. Mart ́ın-Alvarez ́
Table 13.19Results of applying CVA to the data of 10 volatile compounds in order to discriminate
the four groups of varietal wines. Standardized Coefficients for Canonical (Root) Variables:
Root 1 Root 2 Root 3
Methanol –1.1987 –0.3426 0.0429
1-Propanol –1.9686 –0.4525 0.6012
Isobutanol –0.0210 –5.3379 0.5914
Isoamylic alcohols –4.140 2.5574 –1.7933
1-Hexanol 3.8768 –0.9482 –0.8557
cis-3-Hexen-1-ol 4.2968 1.2231 0.2976
Hexanoic acid –0.6603 –0.3863 –0.1481
Octanoic acid 0.9565 0.2778 1.2102
Decanoic acid 1.2183 –1.2147 –0.6512
Ethyl octanoate 1.5857 –1.7593 –0.3254
Eigenvalues 703.5202 38.9719 5.6440
Cum. Proportion 0.9404 0.9925 1.0000Table 13.20Results of applying CVA to the data of 10 volatile compounds in order to discriminate
the four groups of varietal wines. Unstandardized Canonical (root) Scores:
Group Root 1 Root 2 Root 3
Ma98 Malvar –24.068 0.426 4.769
Ma98 Malvar –22.078 1.826 2.500
Ma99 Malvar –22.447 2.930 2.205
Ma99 Malvar –22.428 –0.445 2.079
Ai97 Air ́en –17.647 –7.432 –2.442
Ai97 Air ́en –18.098 –5.638 –3.028
Ai98 Air ́en –17.348 –4.570 –0.604
Ai98 Air ́en –18.936 –5.900 –2.943
Tr97 Trepat 33.058 –3.201 0.758
Tr97 Trepat 37.019 –4.041 1.288
Tr98 Trepat 35.529 –4.025 1.372
Tr98 Trepat 35.093 –2.968 0.458
Mo97 Monastrell 5.687 8.399 –0.419
Mo97 Monastrell 5.669 8.537 –2.631
Mo98 Monastrell 5.758 8.144 –1.279
Mo98 Monastrell 5.238 7.957 –2.083Table 13.21Results of applying CVA to the data of 10 volatile compounds in order to discriminate
the four groups of varietal wines. Means of Canonical (root) Variables:
Root 1 Root 2 Root 3
Malvar –22.76 1.18 2.89
Air ́en –18.01 –5.89 –2.25
Trepat 35.17 –3.56 0.97
Monastrell 5.59 8.26 –1.60