Table 3.

K‐fold cross‐validation results

Group number	Predictive accuracy	Training accuracy
1	0.917	0.899
2	0.946	0.892
3	0.889	0.905
4	0.919	0.905
5	0.778	0.905
6	0.861	0.887
7	0.917	0.890
8	0.833	0.920
9	0.833	0.905
10	0.833	0.887
− x ± s	0.873 ± 0.053	0.899 ± 0.011