Discrimination of Geographical Origin of Unroasted Kernels Argan Oil (Argania spinosa (L.) Skeels) Using Tocopherols and Chemometrics

Table 3

Discriminant functions elaborated based on the tocopherols composition.

Functions	Wilks’ lambda	p value	Variance (%)	Cumulative (%)	Canonical correlation
Function 1 = −0.70 – 0.07 × α-tocopherol + 0.01 × γ-tocopherol + 0.035 × δ-tocopherol	0.02	0.000	85.7	85.73	0.95
Function 2 = −4.33 + 0.05 × α-tocopherol − 0.01 × γ-tocopherol + 0.11 × δ-tocopherol	0.30	0.000	10.7	96.42	0.75
Function 3 = −14.36 + 0.11 × α-tocopherol + 0.01 × γ-tocopherol + 0.01 × δ-tocopherol	0.69	0.007	3.6	100.00	0.55