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edunford / tidysynth

A tidy implementation of the synthetic control method in R
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One-tailed permutation tests #23

Closed aneeman closed 1 year ago

aneeman commented 1 year ago

Thanks for this wonderful tool! I have a quick question: I'm running a synthetic control in which the plausible treatment effects are almost certainly negative. With that in mind, I'd like to modify the permutation test to be one-tailed rather than two-tailed. Do you know of a good way to do this, either via tidysynth or another SCM package? I can't seem to find anything, but it seems like a need that would come up frequently enough to be worth making available, if not already.

edunford commented 1 year ago

Thanks for reaching out! So technically all the data you'd need to compute a one-tailed test is accessible via the relevant grab_ functions (i.e. to get the synthetic controls for each of units both from the treated and donor pool). Post what you end up cooking up here!