retested artificial dataset

> summary(report$lm.error)
Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
63.94   77.20   89.40   88.32  102.00  108.80
> summary(report$svm.error)
Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
61.90   80.20   96.37   97.65  118.70  128.30
> summary(report$rpart.error)
Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
150.6   186.3   204.4   210.5   241.2   267.1
> summary(report$citree.error)
Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
150.6   184.6   204.4   209.1   236.4   267.1