search
Search
Unlock 100+ guides
search toc
close
Cancel
Post
account_circle
Profile
exit_to_app
Sign out
What does this mean?
Why is this true?
Give me some examples!
search
keyboard_voice
close
Searching Tips
Search for a recipe:
"Creating a table in MySQL"
Search for an API documentation: "@append"
Search for code: "!dataframe"
Apply a tag filter: "#python"
Useful Shortcuts
/ to open search panel
Esc to close search panel
to navigate between search results
d to clear all current filters
Enter to expand content preview
Doc Search
Code Search Beta
SORRY NOTHING FOUND!
mic
Start speaking...
Voice search is only supported in Safari and Chrome.
Shrink
Navigate to

# Changing the order of columns in a Pandas DataFrame

schedule Aug 12, 2023
Last updated
local_offer
PythonPandas
Tags
mode_heat
Master the mathematics behind data science with 100+ top-tier guides
Start your free 7-days trial now!

Consider the following DataFrame:

``` df = pd.DataFrame({"A":[3,4],"B":[5,6],"C":[7,8]})df    A  B  C0  3  5  71  4  6  8 ```

# Changing column orders using list of labels

To swap the positions of columns `A` and `B`:

``` df = df[["B","A","C"]]df    B  A  C0  5  3  71  6  4  8 ```

Here, we are extracting columns `B`, `A` and `C` in that order as a DataFrame, and then assigning it to `df`.

# Changing column orders using reindex method

Alternatively, you could use the `reindex(~)` method like so:

``` df.reindex(columns=["B","A","C"]) B A C0 5 3 71 6 4 8 ```

# Dealing with case with large number of columns

The downside to both these solutions is that you have to explicitly type out each column label. For DataFrames with many columns, this could be a tedious task.

Consider the same DataFrame as before:

``` df    A  B  C0  3  5  71  4  6  8 ```

To simply swap two columns without typing all column labels:

``` columns = list(df.columns)columns[0], columns[1] = columns[1], columns[0]   # Swap the first and second columnsdf.reindex(columns=columns) B A C0 5 3 71 6 4 8 ```

Note the following:

Edited by 0 others
thumb_up
thumb_down
Comment
Citation
Ask a question or leave a feedback...
thumb_up
0
thumb_down
0
chat_bubble_outline
0
settings
Enjoy our search
Hit / to insta-search docs and recipes!