View source: R/spc.capability.cpm.simple.R
spc.capability.cpm.simple | R Documentation |
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). |
A scalar with computed Cpm.
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