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. Author manuscript; available in PMC: 2009 Sep 16.
Published in final edited form as: Artif Intell Med. 2009 Jan 21;46(3):201–215. doi: 10.1016/j.artmed.2008.12.005

Table 6.

Decision rule sets for DT with Case 3 dataset (a) full, (b) pruned (level 2).

Rule # If
DBPavg
(mm Hg)		 and
pCO2skw 		and
pCO2std
(mm Hg)		 and
pCO2avg
(mm Hg)		 and
SBPmax
(mm Hg)		 and
pO2std
(mm Hg)		 and
pO2skw 		and
SBPkrt 		and then
DBPadm
(mm Hg)		 Class Y(1)/
N(0)		 Class/
total		 Membership
%
(a)
     1 <42 <−0.3 <7 <34 Y 2/2 100
     2 <42 <−0.3 <7 >34 <105 N 13/13 100
     3 <42 <−0.3 <7 >34 >105 Y 1/1 100
     4 <42 <−0.3 >7 Y 4/4 100
     5 <42 >−0.3 <29 <−0.5 N 5/9 56
     6 <42 >−0.3 <29 >−0.5 <−1.5 N 1/1 100
     7 <42 >−0.3 <29 >−0.5 >−1.5 Y 27/27 100
     8 <42 >−0.3 >29 N 3/3 100
     9 >42 <37 Y 3/3 100
     12 >42 >37 N 36/40 90
Rule # If
DBPavg
(mm Hg)		 and
pCO2skw 		and
pCO2std
(mm Hg)		 and
pO2std
(mm Hg)		 and then
DBPadm
(mm Hg)		 Class
Y(1)/
N(0)		 Class/
total		 Membership
%
(b)
     1 <42 <−0.3 <7 N 13/16 81
     2 <42 <−0.3 >7 Y 4/4 100
     3 <42 >−0.3 <29 Y 31/37 84
     4 <42 >−0.3 >29 N 3/3 100
     5 >42 <37 Y 3/3 100
     6 >42 >37 N 36/40 90