Fix issue with variable number of decimals shown in the UCL/LCL (Show Limit Labels Option in Control Chart Builder)

[Carlz]

The  number of decimals shown in the UCL/LCL varies from chart to chart randomly.  I cannot find a way to set the number decimals manually.  @PatrickGiuliano suggested I submit this issue via the wish list. I feel it is a bug. 

JMP variable number of decimals in SPC charts.docx

[PatrickGiuliano]

Hello @Carlz , Thank you for posting your suggestion and expressing your concern about the current feature implementation! 

With regards to the  "Show Limit Labels" Option in Control Chart (CC) Builder, Limit Labels can be shown on  CC Builder graphs. 

But currently the display format - other than the Font of these Limit Labels - is not controllable by the user as an option in the Platform, and the number of decimals displayed can vary, as Carl has indicated, and that variance will depend on the things like: the type of chart produced (e.g. I-MR vs X-bar&R) and the number of decimals displayed in the source data table Column for the response being graphed. 

This Wish List Request includes a possible feature in the Red triangle menu in CC Builder (e.g. as a submenu option to the "Show Limit Labels" Option), and/or as a Right Click > Customize Option (where currently only Font is modifiable for the Limit labels):

Note that the number of decimals for the limits is currently adjustable in the Data Limit Summaries Report.  JMP does not do any rounding internally to the data when generating these limit summaries, and all values are computed and stored as floating point.

[SamGardner]

Thanks for telling us about this issue.  Would you be able to share the example data you used to create your output?  That would help us out in tracking down what is happening.  

[Carlz]

How do I attach the data

[Carlz]

I sent it via email.  please do not share

[PatrickGiuliano]

@SamGardner , fantastic! 

[MSN]

Hi @PatrickGiuliano @SamGardner and @Carlz,

Did you find any solution? It doesn't seem that this function is available in JMP 16 or JMP 17?

We generate control charts for dozens of parameters (with variable decimal places i.e., 0 to 4). By default, the function 'show limit labels' in control chart builder highlights limits and average Labels with 3 decimal places.  Fixing the decimal places through column properties, didn't work either. Any solution?

For manufacturing teams and QA teams these are important to have for OOT/OOE labelling. Any help would be appreciated.

Thanks

[PatrickGiuliano]

Hello @MSN,  As of JMP 18 we do have an option under the red triangle menu in Control Chart Builder called "Limits Label Precision."  You can use that option to set the number of decimals displayed.

There is still no option to "customize" what you're seeing on a per-graph basis.  While Right Click > Customize... does have a "Limit Labels" attribute, there isn't any option to change the display resolution there -- only the font and text color.

I'd suggest upgrading to JMP 18 as I can't see any better option currently.  Hope that helps!