How to Group-By Pandas DataFrames to Compute the Mean

Computing the mean in pandas using Group By expressions

Giorgos Myrianthous
Towards Data Science
4 min readJun 28, 2022

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Photo by Diana Polekhina on Unsplash

Introduction

When working with pandas DataFrames, we usually need to compute certain metrics for specific groups. The typical way to achieve this is through the traditional group-by expression followed by the relevant calculation we need to compute.

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