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

Finding the Youngest Offspring: A Comprehensive Guide to Matching Rows and Handling Missing Values in R

Calculating Daily Time Spent on Measurements: A Step-by-Step Guide with R

Selecting Values from Columns Based on Another Column's Value in R

Understanding ggplot2: A Deeper Dive into Geom Hlines - Fixing the Error with Unique Function and Correct Usage of geom_hline()

Understanding Missing Values in R Subset Dataframes: A Step-by-Step Guide

Transposing from Long to Wide and Aggregating Rows with Matching ID in R: A Comprehensive Guide

Handling Hidden Characters in Strings: Solutions for Web Scraping and Text Processing

Here is a rewritten version of your response:

Subset Data Frame Based on Multiple Criteria for Deletion of Rows Using Dplyr in R