Add smoothing to a refinement workflow — add

Adds a smoothing step to a rating_refinement object.

Usage

add_smoothing(
  model,
  x_cut,
  x_org,
  degree = NULL,
  breaks = NULL,
  smoothing = "spline",
  k = NULL,
  weights = NULL
)

smooth_coef(
  model,
  x_cut,
  x_org,
  degree = NULL,
  breaks = NULL,
  smoothing = "spline",
  k = NULL,
  weights = NULL
)

Arguments

model: Object of class rating_refinement.
x_cut: column name with breaks/cut
x_org: column name where x_cut is based on
degree: order of polynomial
breaks: numerical vector with new clusters for x
smoothing: smoothing specification
k: number of basis functions
weights: weights column name, usually exposure

Value

Object of class rating_refinement.

Details

add_smoothing() is part of the new refinement workflow and is intended to be used in combination with prepare_refinement() and refit().

The legacy function smooth_coef() remains the only function that should be applied directly to a model object.