Challenge No. 39: From the products list in the question table, extract the unique list of all product codes.
Solved using:Excel (SORT, TOCOL, UNIQUE), Power Query (List.Distinct, Table.Distinct, Table.Sort), Python, and R.
Data Cleaning
Challenges about data cleaning techniques.
Table Transformation! Part 4
Challenge No. 32: In the question table, monthly sales and the percentage of total annual sales are provided.
Solved using:Excel (CHOOSECOLS, CHOOSEROWS, DROP), Power Query (Table.Column, Table.ColumnNames, Table.Sort), Python, and R.
Table Transformation! Part 3
Challenge No. 21: In the question table, a list of machinery codes alongside the potential product codes each machine can produce is presented.
Solved using:Excel (FILTER, HSTACK, LAMBDA), Power Query (Text.Combine, Table.Group, Table.Sort), and R.
Table Transformation! Part 2
Challenge No. 15: It may seem unreasonable, but the manager has requested that I convert the question table into the result table, ensuring that information for each product is provided in individual rows.
Solved using:Excel, Power Query, and R.
Table Transformation! Part 1
Challenge No. 1: On various dates, the cumulative sales values (from the beginning of the year) for different products are presented (in the Question table).
Solved using:Excel (DROP, FILTER, HSTACK), and Power Query (Table.AddColumn, Table.TransformColumnTypes).