Table 2.

Partial and overall classification accuracies achieved by employing the PNN classifier and the ECV method.

Trials	Grade I%	Grade II%	Grade III%	Overall accuracy% (no. features)
1	100	83.3	87.5	90.0 (3)
2	100	83.3	75.0	85.0 (2)
3	100	100.0	87.5	95.0 (2)
4	100	83.3	87.5	90.0 (3)
5	100	66.7	87.5	85.0 (3)
6	100	50.0	100	85.0 (3)
7	100	100	87.5	95.0 (3)
8	100	100	75.0	90.0 (2)
9	100	83.3	75.0	85.0 (3)
10	100	83.3	100	95.0 (3)
Mean ± std	100 ± 0	83.3 ± 15.7	86.3 ± 9.2	89.5 ± 4.4

std: standard deviation.