Table 8.

Accuracy of different classifiers for six stimuli combinations (in %) using the best individual features.

individual feature	classifier variant	NaCl 5 ml versus 10 ml	NaCl 5 ml versus H2SO4	NaCl 5 ml versus O3	NaCl 10 ml versus O3	NaCl 10 ml versus H2SO4	O3 versus H2SO4	average accuracy (%)
F2 (wentropy)	LDA	55.3	66.4	73.4	77.6	59.5	82.8	69.2
	QDA	52.2	67.6	62	74	56.4	95	67.9
	Diaglinear	55.3	66.4	73.4	77.6	59.5	82.8	69.2
	Diagquadratic	52.2	67.6	62	74	67.3	95	69.7
	Mahalanobis	55.5	73.1	73.7	78.2	63.8	94.4	73.1
F3 (Hjorth complexity)	LDA	74.4	73.9	78.9	66	68.3	66.9	71.4
	QDA	74.1	47.1	61.6	71.5	67.5	41.8	60.6
	Diaglinear	74.4	73.9	78.9	66	68.3	66.9	71.4
	Diagquadratic	74.1	47.1	61.6	71.5	67.5	41.8	60.6
	Mahalanobis	74.4	75.1	62.4	51.1	69.4	81.5	69
F8 (kurtosis)	LDA	57.1	66.5	57.6	60.5	72.1	66.1	63.3
	QDA	47.8	38.4	69.3	47.1	71.8	22.5	49.5
	Diaglinear	57.1	66.5	57.6	60.5	72.1	66.1	63.3
	Diagquadratic	47.8	38.4	69.3	47.1	71.8	22.5	49.5
	Mahalanobis	57.7	58.2	38.5	81.3	71.3	81	64.7
F9 (Hjorth mobility)	LDA	60.4	73.9	68.5	66	56	35.8	60.1
	QDA	49.7	47.7	76.4	82.3	48.7	81.6	64.4
	Diaglinear	60.4	48.8	68.5	66	56	35.8	55.9
	Diagquadratic	49.7	47.7	76.4	82.3	48.7	81.6	64.4
	Mahalanobis	66.2	54.6	30.1	24.7	58.4	20.5	42.4