Options: -M 4.0 

M5 pruned model tree:
(using smoothed linear models)
LM1 (352/84.604%)

LM num: 1
bug = 
	0.0089 * ce 
	+ 0.0005 * loc 
	- 0.0042

Number of Rules : 1

Time taken to build model: 0.29 seconds
Time taken to test model on training data: 0.01 seconds

=== Error on training data ===

Correlation coefficient                  0.5331
Mean absolute error                      0.2131
Root mean squared error                  0.4208
Relative absolute error                 75.5727 %
Root relative squared error             84.604  %
Total Number of Instances              352     



=== Cross-validation ===

Correlation coefficient                  0.3511
Mean absolute error                      0.2312
Root mean squared error                  0.5222
Relative absolute error                 81.9126 %
Root relative squared error            104.8644 %
Total Number of Instances              352