a suggestion from Byeongdon Oh <donoh@berkeley.edu> -- "Ps. I might have found a typo in the MatchingFrontier Vignette ([here](https://projects.iq.harvard.edu/files/frontier/files/using_matchingfrontier.pdf)). You may want to change "frontierEst()" to "estimateEffects()" on page 7."
a suggestion from
Byeongdon Oh donoh@berkeley.edu
"Ps. I might have found a typo in the MatchingFrontier Vignette (here). You may want to change "frontierEst()" to "estimateEffects()" on page 7."