From: GatewayNet: a form of sequential rule mining
I.S.
Count
Sup.
Amphetamines
1459
0.1284
Barbiturates
666
0.0586
Benzodiazepines
4120
0.3625
Cannabinoids
5937
0.5224
Cocaine
3822
0.3363
Methadone
407
0.0358
Opiates
4525
0.3982
Phencyclidine
114
0.0100
TCAs
350
0.0308