GU_normalization_sum_vcov: Sum covariance matrix for GU normalization
Description
This function adjusts the covariance matrix for the additional coefficient
of the originally left-out reference level of a single factor variable.
Usage
GU_normalization_sum_vcov(coef_names, Cov_beta)
Arguments
- coef_names
names of the dummy coefficients of a factor variable
- Cov_beta
estimated covariance matrix of the regression coefficients