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Understanding Data Aggregation in R: A Comprehensive Guide

Using Summarize Within Mutate Instead of Left Join in R

Converting Large Excel Files with Multiple Worksheets into JSON Format Using Python

Using XlsxWriter to Format Numbers with Signs While Preserving Number Type in Excel Files

Merging Pandas DataFrames with Different Columns and Rows: A Comprehensive Guide

Mastering gsub for Effective Text Processing in R: Solutions and Best Practices

How to Handle Multiple Data Types in Pandas GroupBy Operations

Using Multiple Columns from a Function Call with Data.tables in R: A More Efficient Approach

Understanding Date Formats in R and the Need for Customization