Renaming a subset of the columns in a pandas Dataframe

Question

I am trying to rename specific columns in a pandas.DataFrame so I can concat it with a similar dataframe. The code I ran is compiling but it doesn't successfully rename the columns.

df4.rename(columns={"Level1":"PctLevel1","Level2":"PctLevel2","Level3":"PctLevel3","Level4":"PctLevel4"})

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Be sure to reassign back to df4. For example, `df4 = df4.rename(...... ` — Scott Boston, Oct 01 '19 at 19:20
Does this answer your question? [Renaming column names in Pandas](https://stackoverflow.com/questions/11346283/renaming-column-names-in-pandas) — Arturo Sbr, Aug 18 '21 at 20:36

Arturo Sbr · Answer 1 · 2021-08-18T20:35:27.423

1

You just have to reassign the code to df4.

df4 = df4.rename(columns={"Level1":"PctLevel1","Level2":"PctLevel2","Level3":"PctLevel3","Level4":"PctLevel4"})

Likewise, you can set the inplace argument to True.

df4.rename(columns={"Level1":"PctLevel1","Level2":"PctLevel2","Level3":"PctLevel3","Level4":"PctLevel4"}, inplace=True)

edited Aug 18 '21 at 20:35

answered Oct 01 '19 at 21:28

Arturo Sbr

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Renaming a subset of the columns in a pandas Dataframe

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