Categories / count
Summarizing Multiple Columns with dplyr: A Categorical Version
Counting Entries in a Data Frame in R: A Comprehensive Guide
Counting Single Matching Records with the Same AnswerCount Value in the Stack Exchange Database Using SQL Queries
Removing Observations with Filters in R Using Dplyr Library: A Step-by-Step Guide
Calculating Averages in SQL: A Comprehensive Guide to Derived Tables and Subqueries
Understanding Missing Values in R: Techniques for Handling and Classifying Variables
Counting Frequencies of Values in Two Columns Using R
Counting Values in Column with Ranges Given a Specific Condition