示例

  1.  def function(x):
  2.     if x.name in ["code", "name", "level"]:
  3.         if len(x) == 1:
  4.             return x.values[0]
  5.         else:
  6.             return list(x)
  7.     elif x.name == "id":
  8.         return "_".join([str(x) for x in list(x)])       
  10. res_df = res_df.groupby("meaning").agg({
  11.     "id": function,
  12.     "code": function,
  13.     "name": function,
  14.     "level": function,
  15.     "test": np.sum
  16. }).reset_index()
  18. res_df.groupby("event_meaning").agg({"id": lambda x: "_".join(list(x))}).reset_index()