Handling Duplicated Values in R Summarization

Calculating Cumulative Sums with Window Functions in SQL: A Guide to Choosing Between GROUP BY and Window Functions

Summing Multiple Columns with Variable Names Using String Manipulation in R

Understanding R Data Types: Troubleshooting Integer Sum Errors in Tidytuesday Datasets

Counting Values Greater Than or Equal to X Across Multiple Columns in a Dataframe Using dplyr and lubridate