spc.capability.cpm.simple: Calculate Capability Measures - Cpm
In burrm/lolcat: Miscellaneous Useful Functions

Calculate Cpm, a measure that combines the measure of variability and targeting relative to nominal specifications. Higher is better.

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

`lower.specification`	Lower specification limit (if applicable)
`upper.specification`	Upper specification limit (if applicable)
`process.variability`	Estimate of process variability, expressed as variance
`process.center`	Estimate of process center
`nominal.center`	Nominal target for the process
`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).