data frame with flatten column names

Last Updated on April 20, 2023 by mishou

I. The sample data set

data frame

II. Grouped by nationality

data frame with multi index columns

III. MultiIndex Columns flattened

data frame with flatten indeces

You can see the code here on Google Colaboratory:

You can learn more about how to flatten multiIndex columns and rows from the post linked below:

How to flatten MultiIndex Columns and Rows in Pandas

By mishou

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