Challenge No. 113: Consider the IDs in the question table.
Solved using:Excel (DROP, IF, LAMBDA), Google Sheets, Power Query (List.Transform, Table.AddColumn, Table.AddIndexColumn), Python, Python in Excel, and R.
Removing Duplicate Data
Handling and removing duplicate data
Duplicate Values! Part 1
Challenge No. 100: Consider the IDs in the question table.
Solved using:Excel (CHAR, COUNTIF, COUNTIFS), Google Sheets, Power Query (List.Transform, Table.AddColumn, Table.Group), Python, Python in Excel, and R.