Options: -M 4.0 

M5 pruned model tree:
(using smoothed linear models)
LM1 (234/93.461%)

LM num: 1
bug = 
	0.0219 * ce 
	- 0.0954 * mfa 
	+ 0.0587

Number of Rules : 1

Time taken to build model: 0.24 seconds
Time taken to test model on training data: 0.01 seconds

=== Error on training data ===

Correlation coefficient                  0.3557
Mean absolute error                      0.2162
Root mean squared error                  0.3881
Relative absolute error                 86.6329 %
Root relative squared error             93.4614 %
Total Number of Instances              234     



=== Cross-validation ===

Correlation coefficient                  0.2556
Mean absolute error                      0.2234
Root mean squared error                  0.409 
Relative absolute error                 89.3053 %
Root relative squared error             98.1393 %
Total Number of Instances              234