Adding a Column to a Pandas DataFrame Without Altering Index

General Discussions
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Okay, direct assignment works, but what if I want to place the new column at a specific position in my DataFrame?:thinking:

You can use insert() to control where it appears:

df.insert(4, 'e', [-0.335485, -1.166658, -0.385571])

:white_check_mark: Why this?

  • The second argument (4) specifies that column 'e' will be added as the fifth column in df.
  • Unlike direct assignment, this method lets you decide the exact position while using pandas add column to dataframe.

But wait, what if you want to keep the original DataFrame unchanged while adding the new column? Keep reading. :arrow_down: