HF RL Explorer

Issue: Datalab crashes when displayed without label information

Issue: Datalab crashes when displayed without label information: a task in LegoFlow-SWE (Harbor dataset). df = pd.DataFrame({'feature': 1, 2, 3, 4, 5 }) lab = Datalab(df) No label name specified print(lab) KeyError: 'num classes'

The task

df = pd.DataFrame({'feature': [1, 2, 3, 4, 5]}) lab = Datalab(df) # No label_name specified print(lab) # KeyError: 'num_classes' ```

Part of Lego-X/LegoFlow-SWE.