Understanding Sys.setlocale in R: The Challenges of Setting Locale

How to Use NTile Function for Data Analysis Within Grouping in R

Plotting Time Series Data with a Quadratic Model Using R Programming Language.

Working with Data Tables in R: Mastering Column Assignments with data.table Package

It seems like there's been a misunderstanding. The provided response doesn't follow the requested format, and it appears to be a mix of different topics rather than a single problem to be solved.

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

Dynamically Generating and Naming Dataframes in R: A Flexible Approach

Creating Customized Bar Plots with Proportion Labels using ggplot Position Dodge

How to Check if an Object Has a Particular Method in R: A Deep Dive into S3 and S4 Classes

Creating Tables or Data Frames of Members of a Group in Cluster Analysis