User Community
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Don’t miss your chance to experience Discovery Summit Europe at our best available rate! Early bird registration through 31 Oct.
  • Graph Builder Toolbar streamlines interactive graphing. Creates shortcuts on Report and GraphBuilder Helpers toolbars. Download and install the extension.
  • JMP will suspend normal business operations for our Rest and Recharge Day on Friday, October 2, 2026.
    Regular business hours will resume on Monday, October 5, 2026.

Discussions

Solve problems, and share tips and tricks with other JMP users.
Choose Language Hide Translation Bar
Falcon
Falcon
Level I

which G rand R value should I look at?

Created: Nov 18, 2022 06:43 AM  |  Last Modified: Jun 10, 2023 1:53 PM (2571 views)

hi

I have a question regarding Gage R&R in jump.

I have done a study and I am getting 2 Gage R&R values. I am not sure which one is the one.

I think the 38 % ?

am I correct or the 14% is the right value for the study?

Falcon_0-1668771702607.png

 

1 ACCEPTED SOLUTION

Accepted Solutions
ChristianBille
ChristianBille
Level IV
Solution

Re: which G rand R value should I look at?

Nov 18, 2022 07:21 AM (2564 views)  |  Posted in reply to message from Falcon 11-18-2022

Hi Falcon, 

 

Welcome to our community!

 

The way I read the chart is that:  

 

The 36,172 is a number showing how much of the total variation is comming from your GRR study. In other words 36,172 of your variation is due to your measurement equipment and procedure. 

 

The 13,08 % is how much of the much of the uncertainty in your GRR you can affect by improving your measurement setup.

 

The intresting number here is what is found under Guage RR (RR) which is 0,9291148. That number is how much uncertainty you need to include in your uncertainity budget. Keep in mind that that number is 6*stddev (where k=6). 

 

If you compare that number to your specification/tolerance window you would see how much of your tolerance window is used by your measurement uncertainty.  This number is also called Precision to Tolerance Ratio or PT Ratio.

 

Hope that helps

Best Christian 

 

View solution in original post

0 Kudos
1 REPLY 1
ChristianBille
ChristianBille
Level IV
Solution

Re: which G rand R value should I look at?

Nov 18, 2022 07:21 AM (2565 views)  |  Posted in reply to message from Falcon 11-18-2022

Hi Falcon, 

 

Welcome to our community!

 

The way I read the chart is that:  

 

The 36,172 is a number showing how much of the total variation is comming from your GRR study. In other words 36,172 of your variation is due to your measurement equipment and procedure. 

 

The 13,08 % is how much of the much of the uncertainty in your GRR you can affect by improving your measurement setup.

 

The intresting number here is what is found under Guage RR (RR) which is 0,9291148. That number is how much uncertainty you need to include in your uncertainity budget. Keep in mind that that number is 6*stddev (where k=6). 

 

If you compare that number to your specification/tolerance window you would see how much of your tolerance window is used by your measurement uncertainty.  This number is also called Precision to Tolerance Ratio or PT Ratio.

 

Hope that helps

Best Christian 

 

0 Kudos

Recommended Articles