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Greg (version 2.0.2)

model.matrix.ols: A fix for the model.matrix

Description

The model.matrix.lm() that the ols() falls back upon "forgets" the intercept value and behaves unreliable in the vcovHC() functions. I've therefore created this sub-function to generate the actual model.matrix() by just accessing the formula.

Usage

# S3 method for ols
model.matrix(object, ...)

Value

matrix

Arguments

object

A Model

...

Parameters passed on