Tags / unique
Removing Duplicates in R: A Performance Analysis
Filter Groups in Pandas DataFrames with Boolean Indexing and np.in1d
Splitting a Long Format DataFrame by Unique Values Using Pandas
Uniquing Existing Core Data Entities: A Performance-Driven Approach
Creating Unique Constraints in PostgreSQL with Non-Null Values
5 Ways to Count Unique Elements in Pandas DataFrame Columns
Counting Unique Values per Group with Pandas: A Deep Dive