Closed statzhero closed 1 year ago
A few reasons. It's the default in twang
. It's also the estimand people most frequently use IPW for. Since at the time MatchIt
could only target the ATT, I wanted to demonstrate WeightIt
as a method for estimating other estimands, and to get people to be thinking about estimands rather than just use the default if they wanted to compare matching and weighting. It was kind of an arbitrary choice, though.
This is sort of a silly questions but why is the default for the
weightit()
estimand argument "ATE" and not "ATT"?