Subsetting the First Row of Each Element in a Variable Using Dplyr

Calculate Seasonal Variations Using lubridate and R: A Step-by-Step Guide

Passing Mean as an Argument to dztpois() Function in R: A Practical Guide

Subsetting Multiple Variables in One Column: A Comprehensive Guide to R's Subset Function

Selecting Rows with Partial Matches in R: A Guide to sqldf and Advanced Filtering Techniques