How to Extract Values from Specific Columns in a Pandas DataFrame While Maintaining Original Order

Retrieving Unknown Column Names from DataFrame.apply: A Step-by-Step Solution

Understanding the Data Structures Behind Pandas DataFrames and Numpy Arrays: A Deep Dive Into Unpredictable Output Due to Broadcasting Issues

Removing Rows with More Than Three Columns Having the Same Value Using Pandas and Alternative Approaches

Summing Items in an Array -- in a DataFrame -- in a Groupby for Analyzing Topic Distribution Over Time

Optimizing Summation Operations with Pandas vs SQL: A Performance Comparison for Large-Scale Data Processing

Formatting Specific Cells in xlsxwriter: A Comprehensive Guide

Grouping and Aggregating Data with Python's itertools.groupby

In addition to the code snippets I provided earlier, here is a complete example that incorporates all of the best practices I mentioned:

Data Analysis with Pandas and Matplotlib: Sorting a DataFrame by Column Count and Plotting Proportions