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Staged Control Chart using SQC and Performance Equations

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Hey guys,

 

I'm in the process of developing a process dashboard I'd like to develop an individuals control chart that stages the control limits based on a process condition. I will use performance equations to evaluate two PI calculations to define what the control limits should be for each condition.

 

If I use the tag of the performance equation to define the control parameters in the PI-SQC Chart Definition window, will the control limits illustrate the history of different stages as shown in Figure 1 Below? Or will the control chart only display the control limits for the most recent condition as in Figure 2 (not staged)?
 

 

Thanks for the help!

 

 

 

Figure 1. Staged Control chart, showing historical control limits

i_chart_of_icuadmit_by_month.jpg

 

 

 

 

Figure 2. Control Chart, with limits of only 1 condition.
i_chart_of_icuadmit.jpg


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