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ExponentialFox1
ExponentialFox1
Level I

I have a question about the Process Screening report

Apr 23, 2025 04:19 PM (1023 views)

Hello, 

I am interested in using the Process Screening function in JMP 18 (Analyze->Quality and Process->Process Screening). Here is part of a report that I generated. I expected that the column "Any Alarm" would be equal to the sum of all of the alarms for that row; however, it often is not. Can you please explain to me how the Any Alarm column is calculated? 

Thanks  

ExponentialFox1_0-1745439267521.png

 

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ThomasB
ThomasB
Level II
Solution

Re: I have a question about the Process Screening report

Apr 23, 2025 05:16 PM (1013 views)  |  Posted in reply to message from ExponentialFox1 04-23-2025

If you look at the documentation , it states:

Any Alarm

(Appears only when more than one Test column is shown.) The number of subgroups that trigger alarms for any of the tests selected under the Choose Test option. These are the eight Nelson tests and the test for Range Limit Exceeded.

So if a subgroup triggers at least one alarm, it is added to the total. However, a subgroup may trigger multiple alarms at once, and would contribute the same towards the total. The tests are not mutually exclusive.

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ThomasB
ThomasB
Level II
Solution

Re: I have a question about the Process Screening report

Apr 23, 2025 05:16 PM (1014 views)  |  Posted in reply to message from ExponentialFox1 04-23-2025

If you look at the documentation , it states:

Any Alarm

(Appears only when more than one Test column is shown.) The number of subgroups that trigger alarms for any of the tests selected under the Choose Test option. These are the eight Nelson tests and the test for Range Limit Exceeded.

So if a subgroup triggers at least one alarm, it is added to the total. However, a subgroup may trigger multiple alarms at once, and would contribute the same towards the total. The tests are not mutually exclusive.

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