Understanding Conditional Logic with SQL IF Statements: A Deep Dive into `IF EXISTS`

Optimizing R Code with Vectorized Logic: A Guide to IFELSE() and data.table

Mastering Conditional Statements in R: A Guide to if and ifelse

Understanding the Pitfalls of Using Multiple Conditions with ifelse(), coalesce(), and str_detect Functions in R

Replacing Missing Data in One Column from a Duplicate Row Using dplyr and tidyr: A Practical Guide to Handling Incomplete Data

Using Functions to Handle User Input: A Better Approach for Modular and Reusable Code