Options: -M 4.0 

M5 pruned model tree:
(using smoothed linear models)
LM1 (176/88.046%)

LM num: 1
bug = 
	0.0068 * ce 
	+ 0.0607 * cbm 
	+ 0.0117

Number of Rules : 1

Time taken to build model: 0.21 seconds
Time taken to test model on training data: 0.01 seconds

=== Error on training data ===

Correlation coefficient                  0.4741
Mean absolute error                      0.203 
Root mean squared error                  0.3354
Relative absolute error                 75.3546 %
Root relative squared error             88.0463 %
Total Number of Instances              176     



=== Cross-validation ===

Correlation coefficient                  0.4355
Mean absolute error                      0.211 
Root mean squared error                  0.3437
Relative absolute error                 78.0838 %
Root relative squared error             89.8801 %
Total Number of Instances              176