ggQC: Cpk – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

Cpk

Calculate Cpk

function to calculate Cpk - "measure of process centering"

Cpk(LSL, USL, QC.Center, QC.Sigma)

`LSL`	number, customer's lower specification limit.
`USL`	number, customer's upper specification limit.
`QC.Center`	number, the mean or median value determined from an XmR plot or a Studentized (e.g., xBar) analysis.
`QC.Sigma`	number, the sigma value determined from an XmR plot or a Studentized (e.g., xBar) analysis.

numeric, Cpk value (unitless)

Quality Control Charts for 'ggplot'

v0.0.31

GPL-3 | file LICENSE

Authors

Kenith Grey

Initial release