With 0.21+, you can now specify an axis parameter with rename: df.rename()ĭf_renamed = df.rename(columns=lambda x: x + '2' if x in else x)ĭf_renamed = df.rename(columns=rename_some)ĭf_renamed = df. The Pandas DF rename method allows us to rename one or multiple columns. Rename with axis=1 df = pd.DataFrame('x', columns=, index=range(5))
I like to rename my columns so that they are also valid Python attribute. Options are available for in-place modification as well. You can use the following basic syntax to rename columns in a groupby()function in pandas: df.groupby('groupcol'). ¶ DataFrame. One of the most common operations on a DataFrame is to rename the column names.
PANDAS RENAME COLUMN HOW TO
If you need to rename ALL columns at once, How to rename the columns in DataFrame using Pandas In line 1, we use the rename() function and pass in the old column name and the new column name. How do I rename a specific column in pandas?įrom v0.24+, to rename one (or more) columns at a time,ĭataFrame.rename() with axis=1 or axis='columns' (the axis argument was introduced in v0.21.
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