Tags / plyr
The Great R Package Confusion: Why summarize Doesn't Work with Group By in dplyr
How to Use fct_lump() to Get Top N Levels by Group and Put the Rest in 'other'
Creating a Single DataFrame by Aggregating Multiple DataFrames in R Using Nested sapply Functions
Calculating Unemployment Rates and Per Capita Income by State Using Pandas Merging and Grouping
How to Fix the Multiple Observer Issue with observeEvent in Shiny Applications