Table 2 Results of Linear discriminant analysis for saffron qualitative subcategories discrimination: confusion matrix based on the 15 most informative variables selected for FT-NIR techniques.

From: Progress in quality assessment of Italian saffron

 

Calibration

Cross-validation

Prediction

True class

True class

True class

1

Premium

2

Superior

3

High

1

Premium

2

Superior

3

High

1

Premium

2

Superior

3

High

Assigned

 

 1

Premium

13/13

100%

2/46

4.35%

0/20

0%

12/13

92.31%

3/46

6.52%

0/20

0%

5/7

71.4%

0/23

0%

0/8

0%

 2

Superior

0/13

0%

41/46

89.13%

2/20

10.0%

1/13

7.70%

40/46

86.95%

6/20

30.0%

2/7

28.6%

21/23

91.30%

2/8

25.0%

 3

High

0/13

0%

3/46

6.52%

18/20

90.0%

0/13

0%

3/46

6.52%

14/20

70.0%

0/7

0%

2/23

8.70%

6/8

75.0%

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