Using Dplython to Group by Specific Columns and Summarize Rows in Python: A Step-by-Step Guide

Creating Calculated Fields in R at Each Record/Row Level Using Dplyr

Multiplying Column Value by Another Value Depending on Value in Certain Column Using ifelse Function in R

Merging Two R Dataframes While Keeping Matched Rows from the Second DataFrame and Unmatched Rows from the First

Creating a New Column with Calculated Differences Using dplyr's Case_When Function in R

How to Apply Weights to Survey Data for Accurate Representation Using R and the weights Package

Counting NAs Between First and Last Occurred Numbers in Each Column

Creating Simple Formulas in R: A More Concise Approach to the formulator Function

Creating Cross-Tables with Filtered Observations in R using dplyr and Base R

Working with Dates in R: A Deeper Look at Lubridate and dplyr