python-causality-handbook
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Chapter 11&21 Should ipw be used for xlearner?
I'm wondering do I need to use ipw for xlearner, as the last step of xlearner has used ps value to re-weight sample? Need help for this question, thanks!
And do I need to sampling for calculating ps value? When I reading the chapter 21, it seems that there's not need to do so, as the g(x) has the information of how unbalance it is of the train data?