Forum Discussion

JanOos's avatar
JanOos
New Member
10 years ago

Need help creating an SPC chart with filter capability?

Trying to impress the boss with a fancy SPC chart for monthly sales that can be filtered per product.

 

It's a line chart showing count of invoices (Or sum of revenue) per month. So first I need to add a line showing the average  for all the months (A plain horizontal line, but it needs to adjust depending which product I filter on.)

 

Next is a calculated line (LCL=Mean-3*stddev)

 

Every time I have tried it just sees the invoice numbers as individual numbers and gives an average of that, rather than an average of the count per month.

 

I can easily put in fixed lines for all data, but I specifically want something that will adjust depending on the filter applied. If I can add a banner card that shows the actual calculated number per filter it will also help a lot.

 

Then I also need a way to sort products by a count of all invoice numbers in a bar chart. Is that possible?

 

Thanks in advance.

3 Replies

  • JanOos's avatar
    JanOos
    New Member
    10 years ago

    Hi All

     

    I am trying to impress the boss with some SPC Charts that can show either a count of all invoices per month or a sum of revenue per month with some 6sigma based analysis lines on the chart.

     

    For this I need a basic line chart that shows the count of invoices accross a few months with a filter per product. Easy enough.

     

    Next I get lost: I need to show a mean of the count of invoices accross all the months. It's easy enough to enter a fixed number, but then it doesn't change as I filter per product.

     

    For all I have:

    February13519
    April 15370
    January 14046
    March 15656
    May 14810

    So the mean is 14680

     

    Then if I filter to product X I get

    February291
    April 286
    January 271
    March 271
    May 

    260

    With mean 276.

     

    So how do I get my graphs to show a horizontal line of the mean that changes as I filter by product?

     

    The next line is the same concept, but the formula is LCL=Mean-(3*StandardDev)

     

    Does anyone know how to create these lines on a line graph?

     

     

    I also wan't to show all the products with associated revenue on a bar graph, then sort it by amount of revenue so it shows the best performers first.

    • Eric_Zhang's avatar
      Eric_Zhang
      Icon for Microsoft Employee rankMicrosoft Employee
      10 years ago

      JanOos

       

      There's no dynamic reference line feature, you can vote for this idea. So far you can apply a workaround with a measure. To get the second LCL formula, you can tweak the measure accordingly.

      avg ref line = CALCULATE(AVERAGE(sales[sales]),ALL(sales[date]))

      • JanOos's avatar
        JanOos
        New Member
        10 years ago

        Thank you for the response. I tried your formula but unfortunately it returns a 0 value.

         

        I have voted for the feature.