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Introduction to Data Science with Python

The GroupBy Method

Explore the pandas GroupBy method to learn how to split data into groups, apply functions independently, and combine results effectively. This lesson helps you master grouping data, aggregating statistics, and accessing group-specific insights in a DataFrame.

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The groupby method is one of the most important functionalities in pandas. It allows us to group data, call aggregate functions, and combine the results in three steps, namely split, apply, and combine.

First, understand how the three steps (split, apply, combine) operate on grouped data.

  • Split: In this process, the data contained
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