How to generate capability box plots for multiple process qualities?Hi,
I have the data table set-up as attached where my end goal is to generate the cpk/ppk values for each grade based on numerous quality (in this case density, roughness and strength) and also generate the process capability box plots.
I am able to generate those in 'process screening' however unable to do the same using process capability platform in the 'analyze' section. I've successfully done it previously however there were multiple additional steps needed to get there (i.e create subsets and split the table first) which to me is inefficient if I have > 10 grades and > 10 qualities to be analyzed.
Just by using the existing data table format that I have right now and the spec limits table, is there a way for me to get the same result?
Capability box plots that I wanted (example for roughness):
Thank you!
Content OrganizationQuality and Process EngineeringRe: How to generate capability box plots for multiple process qualities?Thank you for this! Are you able to share the modified JMP file that you have?
Are there any other data formatting method that would work better for this? I'm trying to have one data table (or at least as few as possible) to work with as opposed to 2 - 3 new ones created that you get when you start splitting tables.
Re: How to generate capability box plots for multiple process qualities?I don't think you can do it easily with your exact data format. If you have been able to do it previously, you could maybe create a workflow or get the script from Enhanced Log to reproduce your steps. Doing this doesn't really require too many steps BUT it does require some modifications to your data (split your results, add new column to specs and remove few other columns, set spec limits and run the platform)
Other option could be to calculate your Cpk/Ppk using Process Screening and then use Graph Builder to create those boxplots but this would still require you to modify how your data is formatted.
This is one thing I consider JMP to be lacking (difference between quality/process platforms). Some platforms are awesome (like Process Screening) and work with different data formats and other (Process Capability, MSA) quickly end up requiring you to write your own add-ins/scripts to perform seemingly simple tasks (at least I have done it to avoid many issues JMP has with our data formats).
