myprogramlog.txt

实现决策树分类训练试验。 源自c4.5

Read 490 cases (15 attributes) from E:\C45\R8\Data\crx

------------------
Processing tree 0

Final rules from tree 0:

Rule 28:
    	A9 = t
    	A15 > 228
	->  class +  [96.4%]

Rule 15:
    	A4 = u
    	A7 = h
    	A9 = t
	->  class +  [95.4%]

Rule 24:
    	A9 = t
    	A11 > 3
	->  class +  [94.9%]

Rule 1:
    	A4 = u
    	A9 = t
    	A14 <= 110
	->  class +  [94.9%]

Rule 14:
    	A4 = u
    	A9 = t
    	A15 > 8
	->  class +  [94.3%]

Rule 6:
    	A6 = m
    	A9 = t
    	A13 = g
	->  class +  [87.1%]

Rule 11:
    	A6 = w
    	A9 = t
    	A12 = f
	->  class +  [87.1%]

Rule 8:
    	A4 = u
    	A6 = q
    	A7 = v
    	A9 = t
    	A12 = t
    	A15 <= 228
	->  class +  [85.7%]

Rule 36:
    	A4 = l
	->  class +  [50.0%]

Rule 21:
    	A4 = y
    	A13 = g
    	A11 <= 3
    	A14 <= 204
    	A15 <= 228
	->  class -  [93.1%]

Rule 35:
    	A9 = f
	->  class -  [91.9%]

Rule 7:
    	A6 = m
    	A7 = v
    	A13 = s
	->  class -  [87.1%]

Rule 17:
    	A4 = u
    	A7 = bb
    	A14 > 164
    	A15 <= 228
	->  class -  [82.2%]

Rule 25:
    	A15 > 4
    	A15 <= 5
	->  class -  [79.4%]

Default class: -


Evaluation on training data (490 items):

Rule  Size  Error  Used  Wrong	          Advantage
----  ----  -----  ----  -----	          ---------
  28     2   3.6%   106      2 (1.9%)	     8 (9|1) 	+
  15     3   4.6%    30      1 (3.3%)	     5 (5|0) 	+
  24     2   5.1%    25      2 (8.0%)	     6 (7|1) 	+
   1     3   5.1%    23      3 (13.0%)	    14 (15|1) 	+
  14     3   5.7%     4      0 (0.0%)	     3 (3|0) 	+
   6     3  12.9%     2      0 (0.0%)	     2 (2|0) 	+
  11     3  12.9%     3      0 (0.0%)	     3 (3|0) 	+
   8     6  14.3%     4      0 (0.0%)	     4 (4|0) 	+
  36     1  50.0%     2      0 (0.0%)	     2 (2|0) 	+
  21     5   6.9%    55      2 (3.6%)	     0 (0|0) 	-
  35     1   8.1%   198     13 (6.6%)	     0 (0|0) 	-
   7     3  12.9%     5      0 (0.0%)	     0 (0|0) 	-
  17     4  17.8%     5      0 (0.0%)	     0 (0|0) 	-
  25     2  20.6%     1      0 (0.0%)	     0 (0|0) 	-

Tested 490, errors 34 (6.9%)   <<


	  (a)  (b)	<-classified as
	 ---- ----
	  191   26	88.0	(a): class +
	    8  265	97.1	(b): class -