Using replace_na Correctly in Dplyr Pipelines: Understanding Data Types and Best Practices

Understanding Long-Format Data and the Need for Reshaping Using Pivot_Wider in R Programming Language

Evaluating a Model on Test Data: A Creative Solution Without Group By

Understanding the Transitivity of pivot_longer() and pivot_wider() in R: A Solution Using rowid_to_column()

Mastering Tidyr's Spread Function: Overcoming Variable Selection Challenges