Applying Cumsum Function Using Condition in R for Air Traffic Data Analysis

Creating a New Variable Based on Multiple "OR" Conditions in R Using `%in%` Operator

Understanding the Pitfalls of Using Multiple Conditions with ifelse(), coalesce(), and str_detect Functions in R

Understanding IF...ELSE Statements in R

Understanding IF Statements with AND and OR Conditions Together in R: A Comprehensive Guide

Conditional Mutate with Ifelse in dplyr: A Comprehensive Guide to Flexible String Manipulation

Creating a Single Data Point for Each Village and Week in R Data Frames Using ddply

Filling Columns Based on Conditions Using sum() for Matches in R