Pandas groupby(),agg() - how to return results without the multi index?
Below call:
>>> gr = df.groupby(['EVENT_ID', 'SELECTION_ID'], as_index=False)>>> res = gr.agg({'ODDS':[np.min, np.max]})>>> res EVENT_ID SELECTION_ID ODDS amin amax0 100429300 5297529 18 251 100429300 5297559 30 38returns a frame with mulit-index columns. If you do not want columns to be multi-index either you may do:
>>> res.columns = list(map(''.join, res.columns.values))>>> res EVENT_ID SELECTION_ID ODDSamin ODDSamax0 100429300 5297529 18 251 100429300 5297559 30 38