InversePropensityWeighting.make_doubly_robust_adjustment

InversePropensityWeighting.make_doubly_robust_adjustment(ps)

The doubly robust weighting scheme is also discussed in Aronow and Miller, but a bit more generally than our implementation here. Here we have specified the outcome model to be a simple OLS model. In this way the compromise between the outcome model and the propensity model is always done with OLS.