Need help creating an SPC chart with filter capability?

[JanOos]

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.

[JanOos]

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:

February	13519
April	15370
January	14046
March	15656
May	14810

So the mean is 14680

Then if I filter to product X I get

February	291
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]

@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]

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

I have voted for the feature.