HeckmanEM (version 0.1.1)

HeckmanEM.infomat: Standard error estimation for the Heckman Selectio model by the Information Matrix.

Description

`HeckmanEM.infomat()` estimate the standard errors for the parameters for the fitted Heckman selection model.

Usage

HeckmanEM.infomat(obj)

Arguments

obj

An object of the class HeckmanEM.

Value

The estimated standard errors for the parameters of the fitted model.

Examples

# NOT RUN {
res <- HeckmanEM(y, x, w, cc, nu = 4, family = "Normal", error = 1e-05, iter.max = 500, 
                 im = FALSE, criteria = TRUE)
im <- HeckmanEM.infomat(res)
# }