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

Here is the complete code:

Splitting Strings: A Base R Approach to Splitting Data by Specific Conditions

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

Here's a summary of the provided information and some additional examples to demonstrate the usage of the `melt()` function in R:

Removing NA Values From DataFrame: Efficient Column-Based Approach Using Dplyr