Upper & Lower STD within a Line Chart

[qliky88]

Hi Experts, 

Just wondering is it possible to integrate an upper/ lower standard deviation within a line chart? And if so how? 

For context - we have trending samples that must remain within the upper/ lower std tolerances. I would like to display these tolerances within a line graph to clearly show if a sample it out of tolerance. 

[sunny_talwar]

Should just be

Avg(TOTAL Aggr(YourExpression, YourDimension)) + StDev(TOTAL Aggr(YourExpression, YourDimension))

and

Avg(TOTAL Aggr(YourExpression, YourDimension)) - StDev(TOTAL Aggr(YourExpression, YourDimension))

[Kushal_Chawda · Accepted solution]

@qliky88  see the below

https://community.qlik.com/t5/QlikView-Documents/Control-Chart/ta-p/1480248