Table 3.

Calculated values of Euclidean distances and coefficients of variation between groups according to PCA results from e-tongue, CIELab parameters and Raman Spectra.

Relation between Groups		E-Tongue		CIELab Parameters		Raman Spectra
		E. Distance	CV	E. Distance	CV	E. Distance	CV
Ligol	Kosztela	5899.50	0.06	4.19	<0.01	28.83	0.15
Ligol	Grey Reinette	2808.12	0.15	41.97	<0.01	34.86	0.18
Ligol	Cox Orange	6064.19	0.06	22.81	<0.01	21.88	0.29
Ligol	Rubin	5066.53	0.10	10.60	<0.01	20.34	0.23
Kosztela	Grey Reinette	6514.71	0.05	38.57	<0.01	20.07	0.12
Kosztela	Rubin	3238.44	0.14	13.97	<0.01	8.94	0.07
Kosztela	Cox Orange	10191.66	0.04	26.66	<0.01	8.58	0.36
Grey Reinette	Rubin	5916.40	0.09	51.48	<0.01	19.26	0.13
Grey Reinette	Cox Orange	5115.47	0.07	64.30	<0.01	17.25	0.24
Rubin	Cox Orange	8118.85	0.06	13.17	<0.01	2.13	1.17

E. distance—calculated Euclidean distance between two groups. CV (coefficient of variation)—sum of SD from two groups divided by the Euclidean distance between them.