I've had the most amazing opportunity to meet Hadley at a Users group meeting. He is fantastic and very down to earth. Our group refers to his packages as the H

I've had the most amazing opportunity to meet Hadley at a Users group meeting. He is fantastic and very down to earth. Our group refers to his packages as the Hadley stack and I've heard that reference elsewhere as well. He has made a very powerful impact on how R has been evolving!