model.matrix.heckit5rob: Design Matrix of Switching Regression Model

In ssmrob: Robust Estimation and Inference in Sample Selection Models

Description

Create design matrix of switching regression model

Usage

## S3 method for class 'heckit5rob'
model.matrix(object, part = "outcome", ...)

Arguments

object	object of class heckit5rob
part	character string indicating which matrix to extract: "outcome" for the outcome equations, "selection" for the selection equation.
...	currently not used

Value

If argument part is "outcome", the list containing design matrices of the outcome equations is returned.

stage21	design matrix for the first regime
stage22	design matrix for the second regime

If argument part is "selection", the design matrix of the selection equation is returned.

Author(s)

Mikhail Zhelonkin

ssmrob documentation built on Aug. 20, 2021, 5:08 p.m.