Support for fuzzy vs. sharp regression discontinuity?

[JacobElder]

I thought one additional useful feature could be allowing for the estimation of fuzzy vs. sharp RDDs.

Sharp RDD: Assignment or running variable completely determines treatment. A jump in the probability of treatment before and after cutoff point.
Fuzzy RDD: Cutoff point increases the probability of treatment but doesn't completeley determines treatment.

https://clas.ucdenver.edu/marcelo-perraillon/sites/default/files/attached-files/regression_discontinuity_designs.pdf#:~:text=Sharp%20RDD%3A%20Assignment%20or%20running,doesn't%20completeley%20determines%20treatment.

[drbenvincent]

Thanks for the issue @JacobElder. Going to close this as it's a duplicate of #221. But I'll add the link you've provided to that issue.

It would be a cool new addition. Do you feel like tackling it?