Compute profiles limits — climProfiles • SixSigma

Function to compute prototype profile and confidence bands for a set of profiles (Phase I)

climProfiles(
  profiles,
  x = 1:nrow(profiles),
  smoothprof = FALSE,
  smoothlim = FALSE,
  alpha = 0.01
)

Arguments

profiles: Matrix with profiles in columns
x: Vector for the independent variable
smoothprof: regularize profiles? [FALSE]
smoothlim: regularize confidence bands? [FALSE]
alpha: limit for control limits [0.01]

Value

a matrix with three profiles: prototype and confidence bands

References

Cano, E.L. and Moguerza, J.M. and Prieto Corcoba, M. (2015) Quality Control with R. An ISO Standards Approach. Springer.

Author

Javier M. Moguerza and Emilio L. Cano

Examples

wby.phase1 <- ss.data.wby[, 1:35]
wb.limits <- climProfiles(profiles = wby.phase1,
    x = ss.data.wbx,
    smoothprof = FALSE,
    smoothlim = FALSE)
    plotProfiles(profiles = wby.phase1,
                 x = ss.data.wbx, 
                 cLimits = wb.limits)