Challenge No. 18: Dynamically generate a sales calendar for the month entered in F3, based on data from the given table.
Solved using:Excel, Power Query, and R.
Omid Challenges
Including all the Excel Power BI Power Query Python R challenges designed by Omid.
Visualization!
Challenge No. 17: Efficiently visualize sales data using the least number of charts and slicers possible.
Solved using: Excel.
Transform Data Format!
Challenge No. 16: Change the format of the data from the question table to that of the result table.
Solved using:Excel, Power Query, 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.
Identify All-Season Products!
Challenge No. 14: Create a list of products sold in all the months throughout the year.
Solved using:Excel (COUNT, FILTER, LAMBDA), Power Query (Date.Month, List.Distinct, List.Transform), and R.
Analyze Words Combination!
Challenge No. 13: Determine how frequently Words from words list are comes together in article titles.
Solved using:Excel (CHOOSEROWS, IF, LAMBDA), Power Query (Table.AddColumn), and R.
Data Normalization
Challenge No. 12: In every decision-making process, the first step is to normalize the data.
Solved using:Excel (BYCOL, LAMBDA), Google Sheets, Power Query (List.Transform, Table.FromColumns, Table.ToColumns), R, and VBA.
Identify Frequent Codes
Challenge No. 11: Extract all item codes that are repeated at least in 3 out of 4 lists presented in the question table.
Solved using:Excel (BYCOL, FILTER, LAMBDA), Power Query (List.Combine, List.Distinct, List.Transform), and R.
Inventory Efficiency!!!
Challenge No. 10: The question table shows inventory levels for materials required to produce products, with specific combinations (1 A, 2 B, 3 C per product).
Solved using:Excel (HSTACK, LAMBDA, LET), Power Query (Table.AddColumn, Table.Group), and R.
Find The Length Of The Largest
Challenge No. 9: repetition of a specific pattern!
Identify the longest continuous repetition of the
pattern “+ – -” and “+ -” in the question table for each product.
Solved using:Excel, Power Query, and R.