Wrote many influential works in the area of statistical modeling. He was the founding President of the International Astrostatistics Association.
He earned a degree in philosophy from California State University, Chico. He was an assistant to a professor who was one of the founders of the Vienna Circle.
He was also a track and field athlete who won two national championships.
He married Cheryl Swisher in 1984.
He earned his doctorate from UCLA, where David Lewis was a philosophy professor.