What do you do if you want to display the capability of dozens of processes on a common basis?   This opus below not only shows a way to do this (which is similar to previously used approaches), but it also shows the macro code need to generate useful summary graphs.

The graphs generated are a two panel Ppk and Boxplot summary and the other is a “Goal Plot” that shows the mean and standard deviation normalized to a “goal space” for many processes.

Link: Multi – Capability – Approach, Macro Code & Explanation (PDF)


Based on the request here is the raw macro code:   MultiCapabilityEg

Note: you need to paste this code into Notepad and “Save as type:” “All Files (*.*) with a name ending with a .mac extension.


6 thoughts on “Multi-Capability

  1. I would like to obtain a copy of the macro code need to generate useful summary graphs.

  2. I have a very similar code to the one shown here and the issue I am having is obtaining the Anderson-Darling value for accepting/rejecting possible distributions. Do you know of any way that I can retrieve the AD value from Minitab? I am currently using this code to acquire the p-value:

    DCAPA x.i;
    SPvalue c1 c2 c3.

    Any thoughts? At this point I am beginning to believe that I will have calculate the AD value.

    • Sorry for the delay in replying. Life, a job, etc.

      You are right. When I pasted the code into WordPress it removed necessary spaces, changed the quote symbols, etc. I’ve now linked the text directly above so I think you should be off to the races.


      • Mark,
        Spoke to early the first page charts run correctly. The second chart contour plat of PpkRegion still errors out.


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