View source: R/spc.capability.summary.normal.simple.R
spc.capability.summary.normal.simple | R Documentation |
Calculate capability measures and potential out of specification parts per million.
spc.capability.summary.normal.simple( stat.lsl = NA, stat.target = NA, stat.usl = NA, process.center = NA, process.variability.estimate = NA, process.variability.overall = NA, process.n.upper = NA, process.n.lower = NA, process.n = NA, process.ppm.upper = round(1e+06 * process.n.upper/process.n), process.ppm.lower = round(1e+06 * process.n.lower/process.n) )
stat.lsl |
Lower specification limit (if applicable) |
stat.target |
Target for process |
stat.usl |
Upper specification limit (if applicable) |
process.center |
Estimate of process center |
process.variability.estimate |
Estimate of process variability, expressed as variance, usually estimated based on within-group variability. |
process.variability.overall |
Estimate of process variability for performance measures, expressed as variance, usually estimated based on overall variability. |
process.n.upper |
Observed count above upper specification limit, used to calculate PPM (parts per million). |
process.n.lower |
Observed count below lower specification limit, used to calculate PPM (parts per million). |
process.n |
Total count of subjects/objects, used to calculate PPM (parts per million). |
process.ppm.upper |
Observed parts per million (PPM) above upper specification limit. |
process.ppm.lower |
Observed parts per million (PPM) below lower specification limit. |
A data frame with computed measures.
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