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Functions related to PF (prevented fraction). Calculate incidence density ratio, confidence interval, and Rao-Scott weights of PF by multiple methods. See http://goo.gl/eJ6Rxi for definition of PF. No endorsement, claim, or warranty is implied for this package. It is made available for investigational or pedagogical use only. See https://www.aphis.usda.gov/animal_health/vet_biologics/publications/STATWI0007.pdf for futher details.

Author

Maintainer: CVB Statistics CVB.Data.Help@usda.gov [former owner]

Authors:

  • David Siev (until 2019)

  • Marie Vendettuoli (until 2019)

  • Thomas Kent (starting 2020)