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david707
david707
Level III

Help with PPK on one-sided data which includes zeros

Apr 8, 2026 11:59 AM (650 views)

I’m trying to calculate an appropriate PPK for data with the following criteria:

  • Data lies between 0 and +Inifinity
  • A significant portion of the data is exactly 0, and this represents an actual true 0
  • Has an Upper Spec limit only
  • Heavily Skewed

The distribution should be an appropriate distribution for the data.

What’s the best way to get JMP to do this?

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