熊猫/Python - Dataframe 转置/枢轴

Question

I have a dataframe from "df.groupby("symbol").tail(2)" such as below

ID	symbol	prices
0	BNBBTC	0.009545
1	BNBBTC	0.009455
2	ONEUSDT	0.220050
3	ONEUSDT	0.220055

and I would like to transpose/pivot the data to get

ID	symbol	Last_Price	Current_Price
0	BNBBTC	0.009545	0.009455
1	ONEUDST	0.220050	0.220055

Is it achievable with Pandas?

Thanks

Answer 1

Maybe you can use groupby + agg :

new_df = df.groupby('symbol')['prices'].agg(Last_Price='first', Current_Price='last').reset_index()

Output:

>>> new_df
    symbol  Last_Price  Current_Price
0   BNBBTC    0.009545       0.009455
1  ONEUSDT    0.220050       0.220055