Hello
I have a graph in qlikview which shows a count over the last 2 years
I have polotted an upper and lower control limit in the reference lines, to form an SPC chart
Upper Limit
Avg
(Aggr(COUNT(LOCAL_PATIENT_IDENTIFIER), OutPatients_Week)) + (Stdev(Aggr(COUNT(LOCAL_PATIENT_IDENTIFIER), OutPatients_Week)*3))
Lower Limit
Avg
(Aggr(COUNT(LOCAL_PATIENT_IDENTIFIER), OutPatients_Week)) - (Stdev(Aggr(COUNT(LOCAL_PATIENT_IDENTIFIER), OutPatients_Week)*3)) The reference lines show when no selections are made from the list boxes, and I have the static max set to 5500
However the lines are not dynamic and when selections are made from list boxes, the lines dissaper off the graph. Forced 0 does not work either. I do not want to set a static max, as the data I am counting will not show peaks and troughs in the graph
I ahve tried copying the lines as an expression, but they dissapear off the graph altogether
My question is, how can I show the Upper and Lower control limits as dynamic when the user makes selections?
Any ideas?
Thanks
Helen
