티스토리 뷰

공부

[python][pandas] merge

승가비 2022. 8. 6. 08:18
728x90
pd.merge(frame_1, frame_2, left_on='county_ID', right_on='countyid')

frame_1.merge(frame_2, left_on='county_ID', right_on='countyid')

https://stackoverflow.com/questions/20375561/joining-pandas-dataframes-by-column-names

 

Joining pandas DataFrames by Column names

I have two DataFrames with the following column names: frame_1: event_id, date, time, county_ID frame_2: countyid, state I would like to get a DataFrame with the following columns by joining (lef...

stackoverflow.com

 

728x90
저작자표시 비영리

'공부' 카테고리의 다른 글

[python] ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/Users/seunggab.kim/seunggabi/project/umzzal-kim/venv/lib/python3.8/site-packages/markupsafe/__init__.py)  (0) 2022.08.09
[spark] NotSerializableExcetpion (org.apache.spark.SparkException: Task not serializable)  (0) 2022.08.09
[ORC] Optimized Row Columnar  (0) 2022.08.06
[Java] java -Denviroment=dev -jar myjar.jar  (0) 2022.08.06
[python][pandas] df.groupby('a').agg({'b':lambda x: list(x)})  (0) 2022.08.06
댓글