Calculating the average (or mean) of a list of numbers is a fundamental task in programming. Python offers several approaches, each with its strengths and weaknesses. This article explores three common methods, highlighting their efficiency and potential pitfalls. Table of Contents Using the statistics Module sum() and len() Methods Handling…
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Mastering Pandas GroupBy and Aggregation: A Comprehensive Guide
Pandas is a powerful Python library for data manipulation and analysis. One of its most frequently used features is the ability to group data and perform aggregate calculations. This article explores various methods for efficiently calculating aggregate sums after grouping data using the groupby() method, offering solutions for different levels…