topic Re: How to calculate an average reference line (in %) for a run chart in QlikView

How to calculate an average reference line (in %) for a run chart

peterderrington — Fri, 08 Feb 2019 16:56:42 GMT

Hi,

I've created a simple run chart but have run into a small problem - i cant create the reference line mentioned above.

The graph itself is a simple bar/line chart with the line showing the compliance of a task by a given location in percentage form.

The expression for that line is:

Count({<Place={'C03'},[Questions Complete]={'Yes'},[Place transferred to]-={'C07'}>}Place)/Count({<Place={'C03'}, [Place transferred to]-={'C07'}>}Place)

What i need to be able to do is show an average of that expression line on my chart.

Any ideas? Thanks, Peter

Re: How to calculate an average reference line (in %) for a run chart

Vegar — Fri, 08 Feb 2019 17:44:26 GMT

Try something like this:

AVG(AGGR(Count({<Place={'C03'},[Questions Complete]={'Yes'},[Place transferred to]-={'C07'}>}Place)/Count({<Place={'C03'}, [Place transferred to]-={'C07'}>}Place) , [Your X-axis Dimension]))

Re: How to calculate an average reference line (in %) for a run chart

peterderrington — Mon, 11 Feb 2019 12:54:07 GMT

Hi,

Unfortunately it hasn't quite done it.

The line should be a flat line across the graph showing (in this example) as 33.3%

Any ideas where to go next?

Thanks.

Re: How to calculate an average reference line (in %) for a run chart

peterderrington — Mon, 11 Feb 2019 13:22:45 GMT

I just double checked some of the properties of the chart and i'd forgotten to alter the position of the axis from Left to Right (to then match the compliance ratio axis), however when i changed it, it then just removed the compliance ratio expression and displayed this expression in exactly the same place.

Re: How to calculate an average reference line (in %) for a run chart

Vegar — Mon, 11 Feb 2019 13:37:43 GMT

Do you get the correct total avg value if if you put your original expression into an textbox or chart without dimension?

If so then you could try this expression in your graph.

Count(TOTAL{<
   Place={'C03'},
   [Questions Complete]={'Yes'},
   [Place transferred to]-={'C07'}>}Place)
/
Count(TOTAL{<
   Place={'C03'}, 
   [Place transferred to]-={'C07'}>}Place)

Re: How to calculate an average reference line (in %) for a run chart

peterderrington — Mon, 11 Feb 2019 13:38:06 GMT

Ok,

I found the solution. We were so close! Just needed to add TOTAL into the expression:

AVG(TOTAL AGGR(Count({<Place={'C03'},[Questions Complete]={'Yes'},[Place transferred to]-={'C07'}>}Place)/Count({<Place={'C03'}, [Place transferred to]-={'C07'}>}Place) , [Date]))

Thank you so much!