spc.capability.cpU.simple: Calculate Capability Measures - CpU

In burrm/lolcat: Miscellaneous Useful Functions

Calculate Capability Measures - CpU

Description

Calculate CpU, a measure that compares the distance between process center and upper specification limit to process variability. Lower process variability and larger distance between process center and upper specification limit lead to higher values, which are generally considered better.

Usage

spc.capability.cpU.simple(
  upper.specification,
  process.center,
  process.variability,
  n.sigma = 6
)

Arguments

upper.specification	Upper specification limit (if applicable)
process.center	Estimate of process center
process.variability	Estimate of process variability, expressed as variance
n.sigma	The number of standard deviations to use in the denominator of the calculation. 6 is recommended, but 5.15 has also been historically used by Automotive Industry Action Group (AIAG).

Value

A scalar with computed CpU.

burrm/lolcat documentation built on Sept. 15, 2023, 11:35 a.m.