Table 4.

Attributes selected by each of the attribute subset evaluation algorithms. Attributes that are not listed were not included in any of the optimal attribute subsets.

Attribute	CFS	Consistency	Wrapper (decision tree)
Avg reads	X	X	X
Avg writes	X	X	X
Orders entered	X
HELP2 discipline			X
HELP2 specialty		X
HR specialty			X
Parent level 3	X	X
DEA class code			X
Drug class code			X
AHFS class		X
Maintenance drug		X	X
Age	X		X
Age group	X	X	X
Gender		X	X
Medications		X	X
Problems		X
Task			X