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ProcessCapabilityR  

Classical and Generalized Process Capability Indices
View on CRAN: Click here


Download and install ProcessCapabilityR package within the R console
Install from CRAN:
install.packages("ProcessCapabilityR")

Install from Github:
library("remotes")
install_github("cran/ProcessCapabilityR")

Install by package version:
library("remotes")
install_version("ProcessCapabilityR", "0.1.0")



Attach the package and use:
library("ProcessCapabilityR")
Maintained by
Shikhar Tyagi
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-08-03
Latest Update: 2026-08-03
Description:
Computes classical process capability indices (Cp, Cpk, Cpu, Cpl, Cpm, Cpmk, Pp, Ppk, Ppu, Ppl, Z) and the generalized process capability index Cpy (Maiti, Saha & Nanda, 2010) <doi:10.1080/16843703.2010.11673233> for any continuous or discrete quality characteristic. Users supply the probability density function (PDF) and cumulative distribution function (CDF) of the characteristic, and the package returns point estimates, bootstrap confidence intervals (percentile and BCa), and sensitivity tables/plots across ranges of short-term standard deviation (sigma), long-term standard deviation (s), desired yield (p0), and significance levels. Classical indices are recoverable as special cases under the normal distribution. The package follows the theory and notation of Kane (1986) <doi:10.1080/00224065.1986.11978984>, Chan, Cheng & Spiring (1988) <doi:10.1080/00224065.1988.11979102>, Pearn, Kotz & Johnson (1992) <doi:10.1080/00224065.1992.11979403>, Kotz & Johnson (2002) <doi:10.1080/00224065.2002.11980119>, Montgomery (2020, ISBN:978-1-119-39930-8), Juran (1974, ISBN:978-0-07-033176-1), Harry & Schroeder (2000, ISBN:978-0-385-49437-2), and the AIAG SPC Reference Manual (2005, ISBN:978-1-60534-026-3).
How to cite:
Shikhar Tyagi (2026). ProcessCapabilityR: Classical and Generalized Process Capability Indices. R package version 0.1.0, https://cran.r-project.org/web/packages/ProcessCapabilityR. Accessed 03 Oct. 2026.
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