coef.heckitrob {ssmrob}

Extract Coefficients from Robust Sample Selection Model Fit

Description

Returns the coefficients of the robust two-stage estimator for simple Heckman's selection model or switching regression model.

Usage

## S3 method for class 'heckitrob'
coef(object, ...)

Arguments

object

object of class "heckitrob" or "heckit5rob"

...

currently not used

Value

Returns a list of two (censored) or three (switching) vectors of parameters of two stages.

S

coefficients of the selection equation.

O

coefficients of the outcome equation(s).

Author(s)

Mikhail Zhelonkin, Marc G. Genton, Elvezio Ronchetti