Table 7.

Averaged values of the classification accuracies, precisions, and recalls of 2-feature combination across all subjects.

Classifiers	S1	S2	S3	S4	S5	S6	S7	Average
LDA
Accuracy	72.74	72.49	70.09	73.20	71.74	70.44	70.80	71.6 ± 1.1
Precision	79.34	79.62	79.74	68.73	67.28	66.21	66.36	72.8 ± 6.2
Recall	66.50	65.28	58.30	83.45	80.65	81.43	78.70	73.5 ± 9.2
QDA
Accuracy	90.78	91.57	87.49	91.12	89.98	88.83	90.57	90.1 ± 1.3
Precision	93.80	95.84	95.32	87.68	86.27	84.00	87.28	90.0 ± 4.4
Recall	89.63	88.80	79.53	96.50	93.65	96.82	93.65	91.2 ± 5.5
kNN
Accuracy	69.63	69.87	69.85	70.19	69.58	68.89	70.44	69.8 ± 0.5
Precision	67.97	68.73	69.90	70.31	71.24	67.16	68.18	69.1 ± 1.3
Recall	70.81	72.14	72.31	68.21	74.53	66.32	68.38	70.4 ± 2.6
Naïve Bayes
Accuracy	90.79	91.27	87.04	90.82	89.86	88.47	90.39	89.8 ± 1.4
Precision	88.52	88.01	81.73	95.69	94.88	95.93	95.48	91.5 ± 5.1
Recall	92.12	94.16	94.76	85.61	85.96	79.90	86.85	88.5 ± 5.0
SVM
Accuracy	90.18	90.17	88.16	90.96	90.25	88.02	88.99	89.5 ± 1.0
Precision	87.04	95.84	95.32	87.68	86.27	84.00	87.28	89.1 ± 4.2
Recall	93.80	88.80	79.53	96.50	93.65	96.82	93.65	91.8 ± 5.5
ANN
Accuracy	92.02	91.77	90.13	92.65	91.71	90.85	90.74	91.4 ± 0.3
Precision	94.47	89.73	93.20	90.73	86.68	88.03	87.65	90.1 ± 2.7
Recall	88.00	86.33	85.13	95.33	94.05	95.73	95.63	91.5 ± 4.4