Statlog (Shuttle) (Imbalanced: 2 vs 4) data set 1: Description. A imbalanced version of the Shuttle data set, where the possitive examples belong to class 2 and the negative examples belong to class 4. 2: Type. Imbalanced 3: Origin. Real world 4: Instances. 129 5: Features. 9 6: Classes. 2 7: Missing values. No 8: IR: 20.5 9: Header. @relation shuttle-c2-vs-c4 @attribute A1 integer [37, 123] @attribute A2 integer [-85, 1409] @attribute A3 integer [77, 108] @attribute A4 integer [-587, 10] @attribute A5 integer [-46, 436] @attribute A6 integer [-30, 6339] @attribute A7 integer [-18, 40] @attribute A8 integer [-353, 130] @attribute A9 integer [-356, 126] @attribute Class {positive, negative} @input A1,A2,A3,A4,A5,A6,A7,A8,A9 @output Class