The JMP 15 Distribution platform was modernized to have distributional fitters that match what is available in the Generalized Regression platform. Differences in computational methods can result in differences in reported confidence intervals, the best fitting distribution, and so on, between JMP 15 and earlier versions of JMP.
In addition to some newly available distribution fits, additional features for existing distribution fits, an improved Compare Distributions report, usage of the Process Capability platform for capability analyses, and much more, some notable differences are the following:
If you want to have matching results between JMP versions, enable the Legacy Fitters in the JMP 15 Distribution platform by selecting the red triangle menu next to your analysis column and then selecting Continuous Fit ► Enable Legacy Fitters.
For more comprehensive information about the modernization of the JMP 15 Distribution platform, see the following blog posts:
Modernizing the Distribution platform – New fitters in JMP 15
Modernizing the Distribution platform – Comparing distributional fits in JMP 15
Modernizing the Distribution platform – Options for fitted distributions
Modernizing the Distribution platform – Capability analysis
[Previously JMP Note 66137]