2 Replies Latest reply: Feb 9, 2015 8:43 PM by William Choo RSS

    How to generate a Whale Curve and Cumulative Profit graph from unsorted raw sales data

    William Choo

      Hi,

       

      I have a set of data whereby  I need to generate 2 types of graphs - a whale curve and a cumulative graph.

      This is the raw data I have which consists of Customer , Sales and Profit. Assume data is unsorted, so this means I need to use the rank function on some expression later on...

      These are the 2 graphs which is what I eventually need as an output:

       

      X-axis = Cumulative Sales, Y-axis = Cumulative Profit

       

       

      X-axis = Customers (sorted according to profitability), Y-axis = Cumulative Profit

       

      Can someone pls share what should I be using for the Dimensions, Expressions and Sort values for each graph?

       

      For the 1st whale curve, I checked out Barry's helpful blog (Visualizing customer profitability with a whale curve - The Qlik Fix! The Qlik Fix!) for reference but I'm not getting the graph I expected

       

      Dimension: aggr(num(rank(sum(Sales),4)),Customer)

      Expression: rangesum(above(total ROUND(sum( Profit)),0,RowNo(TOTAL)))

      Sort: which maps default to dimension (aggr(num(rank(sum(Sales),4)),Customer)), that I set as "Ascending".

       

      In addition, how do I return a corresponding field e.g. "John", "Richard", etc... for the X-axis?

       

      Thank you!

        • Re: How to generate a Whale Curve and Cumulative Profit graph from unsorted raw sales data
          Oleg Troyansky

          Hi William.

           

          I wish my new book QlikView Your Business was already out!!! It's coming out in April. In the book, I am giving very detailed step-by-step instructions on building the Whale Tail chart. You'll get to build one as part of the tutorial.

           

          Assuming that you don't want to wait till April to buy the book, let me give you some abbreviated instructions here:

           

          Chart Type: Scatter Chart.

          Dimension: Customer

          X-Axis Expression: Cumulative Sales =  Sum(Sales), using Full Accumulation.

          Y-Axis Expression: Cumulative Profit Amount = sum(Profit), using Full Accumulation

          Sorting Expression: Profit Margin Percent, Descending = sum(Profit)/Sum(Sales)

           

          In order to enhance the chart, you can add four Reference Lines:

           

          1. Actual Total Sales

          2. Sales for the products with positive Profit margins (Sales to reach maximum profit)

          3. Actual Profit

          4. Maximum possible Profit (sum of all the positive profits)

           

          These calculations are a bit tricky, and I'll leave these extra details for you to discover in the book. Check it out, it's already listed on Amazon with a discounted pre-order price.

           

          cheers,

           

          Oleg Troyansky

          www.masterssummit.com - take your QlikView skills to the next level!

          • Re: How to generate a Whale Curve and Cumulative Profit graph from unsorted raw sales data
            William Choo

            Hi Oleg,

             

            Thanks for getting back to me on this! And I sure wished I had a copy of ur new book

             

            Actually, I've managed to solve it using rangesum as an alternative to using full accumulation.

            To elaborate on my earlier scenario which I didn't show in my example above, I had a Customer-ID field as a unique key and I use "Customer" as a field name above to designate customer names

             

            Graph 1:

            Y-Axis:Rangesum(above(total ROUND(sum(Profit)),0,RowNo(TOTAL)))

            X-Axis: aggr(Rangesum(above(total ROUND(sum(Sales)),0,RowNo(TOTAL))),Customer-ID)

            Sort: Rangesum(above(total ROUND(sum(Sales)),0,RowNo(TOTAL)))

             

            Graph 2:

            Y-Axis Expression: Rangesum(above(total ROUND(sum(Profit)),0,RowNo(TOTAL)))

            X-Axis: Customer

            Sort: aggr(num(rank(sum(Profit),4)),Entity_Cust), Ascending

             

            Generally speaking, this met my requirement .

             

            I would also play around with your instructions above to see any new graphs I can plot!

            Thanks!