Table 2.

Classification Accuracy

Groups	Maximum Accuracy	Eigenvalue Dimension	Nearest Neighbors	Median Accuracy	Chance Accuracy
Alzheimer's, Old, Young	65.9%	1	1/2	51.2%	34.1%
Alzheimer's, Old	85.2%	1	1/4	63.0%	51.9%
Alzheimer's, Young	74.1%	2	1/7	70.4%	51.9%
Old, Young	89.3%	1	1/2	71.4%	50%
Schizophrenic, Normal	90%	3	1/10	80%	70%