Weighted-Average Least Squares Model Averaging
Implements Weighted-Average Least Squares model averaging
for negative binomial regression models of Huynh (2024) ,
generalized linear models of De Luca, Magnus, Peracchi (2018)
and linear regression models of
Magnus, Powell, Pruefer (2010) , see also
Magnus, De Luca (2016) . Weighted-Average Least Squares
for the linear regression model is based on the original 'MATLAB' code by
Magnus and De Luca < https://www.janmagnus.nl/items/WALS.pdf>, see also
Kumar, Magnus (2013) and
De Luca, Magnus (2011) .