vcov.zibellreg {bellreg}

Covariance of the regression coefficients

Description

Covariance of the regression coefficients

Usage

## S3 method for class 'zibellreg'
vcov(object, ...)

Arguments

object

an object of the class bellreg

...

further arguments passed to or from other methods.

Value

the variance-covariance matrix associated with the regression coefficients.

Examples

data(cells)
fit <- zibellreg(cells ~ smoker + gender|smoker + gender, data = cells)
vcov(fit)