Setting SPC control limits based on an initial set amount of data points in JMP?

jpollock — Sun, 11 Jun 2023 11:10:03 GMT

Hi fellow JMP users.

In Minitab when I wanted to set the Control limits for an SPC chart based on the first "x" amount data points (e.g. 10) I could do this very easily using the 'stage' feature. Any future data points over and above the initial stage would retain these control limits.

Being relatively new to JMP I was curious how setting the control limits based on the first "x" amount of data points is best achieved.

Can anyone advise? Many thanks.

Re: Setting SPC control limits based on an initial set amount of data points in JMP?

tonya_mauldin — Fri, 15 Jan 2021 12:38:56 GMT

There are multiple ways to accomplish this. I suggest starting with the Excluded Row State method. It is the 4th method detailed in this blog post.

4 ways to use fixed/baseline (historical) control limits in Control Chart Builde... - JMP User Community

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Setting SPC control limits based on an initial set amount of data points in JMP?

Re: Setting SPC control limits based on an initial set amount of data points in JMP?