% Synthetic dataset created from a Pandas DataFrame with Sparse columns @RELATION TEST4965018a83-pandas_testing_dataset @ATTRIBUTE input1 REAL @ATTRIBUTE input2 REAL @ATTRIBUTE y REAL @DATA { 0 1.0 } { 1 1.0,2 1.0 } { 0 1.0,2 1.0 } { 0 1.0,1 1.0 }