Banana data set 1: Description. An artificial data set where instances belongs to several clusters with a banana shape. There are two attributes At1 and At2 corresponding to the x and y axis, respectively. The class label (-1 and 1) represents one of the two banana shapes in the dataset. 2: Type. Classification 3: Origin. Real world 4: Instances. 5300 5: Features. 2 6: Classes. 2 7: Missing values. No 8: Header. @relation banana @attribute At1 real[-3.09,2.81] @attribute At2 real[-2.39,3.19] @attribute Class {-1.0,1.0} @inputs At1, At2 @outputs Class