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model.frame.heckmanGE Get the Model Frames of a Generalized Heckman Regression

Source: R/model.frame.heckmanGE.R
model.frame.heckmanGE.Rd

Extracts the model frames for different parts of a heckmanGE model. The model frames include the data used in the regression analysis for each component of the Generalized Heckman Model.

Usage

# S3 method for class 'heckmanGE'
model.frame(
  formula,
  part = c("selection", "outcome", "dispersion", "correlation"),
  ...
)

Arguments

formula

An object of class heckmanGE. This object should be a fitted model from which the model frames will be extracted.

part

A character vector specifying the model part for which to extract the model frame. Options include "selection", "outcome", "dispersion", and "correlation". The default is "outcome". If multiple parts are specified, only the "outcome" part will be returned.

...

Additional arguments passed to or from other methods. These are not used in this method but must be included to match the generic method signature.

Value

A model frame for the specified part of the heckmanGE object. If part is not one of the valid options, an error is raised.

Details

  • The function extracts the model frame corresponding to the specified part of the heckmanGE model.

  • If the part argument is not specified correctly or includes multiple parts, the function defaults to returning the model frame for the "outcome" part.