Calculate fitted values of sample selection models
# S3 method for selection
fitted(object, part = "outcome", ... )object of class selection.
character string indication which fitted values to extract: "outcome" for the fitted values of the outcome equation(s) or "selection" for the fitted values of the selection equation.
further arguments passed to other methods
(e.g. fitted.probit or fitted).
A numeric vector of the fitted values.
If the model was estimated by the 2-step method,
the fitted values of the outcome equation are calculated
using all regressors of this equation
including the inverse Mill's ratios,
i.e. the fitted values correspond to the conditional expectations
(see predict.selection).
If the model was estimated by the maximum likelihood method,
the fitted values of the outcome equation are calculated
by disregarding the selection equation,
i.e. the fitted values correspond to the unconditional expectations
(see predict.selection).
The fitted values of the selection equation are probabilities. If the dependent variable of the outcome equation is binary, also the fitted values of the outcome equation are probabilities.
fitted, selection,
residuals.selection, and selection-methods.