Transforming a Data Frame from Wide to Long Format with Tidyr: A Step-by-Step Guide

Left Joining Two Data Frames by One Column, with a Secondary Column for Non-Matches in R Using Dplyr

R Code Example: Joining Search and Visit Data to Create Check-in Time Variable

Creating Customized Bar Plots with Proportion Labels using ggplot Position Dodge

Using dplyr Window Functions to Calculate Percentiles in R

Creating Grouping Indicators per Row in R with dplyr and match() Functions

Filling Missing Values in DataFrames Using R's Fill Function

Filtering and Subsetting a Data Frame in R Based on Specific Character Positions

Creating Dyadic Data Structures with R and Dplyr: A Step-by-Step Guide

Understanding Missing Values in DataFrames: Best Practices for Handling Missing Data in Statistical Analysis