party (version 1.3-9)

reweight: Re-fitting Models with New Weights

Description

Generic function for re-fitting a model object using the same observations but different weights.

Usage

reweight(object, weights, …)

Arguments

object

a fitted model object.

weights

a vector of weights.

…

arguments passed to methods.

Value

The re-weighted fitted model object.

Details

The method is not unsimilar in spirit to update, but much more narrowly focused. It should return an updated fitted model derived from re-fitting the model on the same observations but using different weights.

See Also

update

Examples

# NOT RUN {
  ## fit cars regression
  mf <- dpp(linearModel, dist ~ speed, data = cars)
  fm <- fit(linearModel, mf)
  fm
  
  ## re-fit, excluding the last 4 observations
  ww <- c(rep(1, 46), rep(0, 4))
  reweight(fm, ww)
# }