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Answers in Scripting and Automation | By Some Guy

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Tags: Python, Scripting, Errors, Programming, ValueError

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Hi, I'm super new to Python and I've been having trouble with my most recent program. It keeps giving me this error: "ValueError: cannot reindex from a duplicate axis" I'm not really sure why it keeps saying this, and I have no idea how to fix it. Has anyone else had this problem? How did you fix it? Thanks so much.

Download more RAM. 🐏 ⨉ 0Posted by Some Guy 2 years ago 🕓 Posted at 13 January, 2019 06:05 AM PST

This is a debug account.

Profile Photo - Defaultquincybatten

The error  usually generates when you concatenate, reindexing or resampling a DataFrame which the index has duplicate values . When you get this "cannot reindex from a duplicate axis" error, first you have to just check if there is any duplication in your DataFrame column names using the code:

df[df.index.duplicated()]

 If DataFrame has duplicate index values , then remove the duplicated index:

df= df.loc[~df.index.duplicated(), :]

Download more RAM. 🐏 ⨉ 0Posted by quincybatten 2 months ago 🕓 Posted at 18 April, 2021 23:01 PM PDT

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