Chapter 1. Representing Data with Values

When you walk into my childhood home in Pittsburgh, it's evident a fellow with a lively mind lives there. Photos from trips to some thirty-one countries on six continents line the walls. Intermingling those are Aborigine and Aleut art, prints by Klimt and Degas, tapestries from Egypt and Peru, and Greek sculptures. Notable literary works fill the library.

Though conversations with my dad are interesting, they tend to be interspersed with what my mom would call "the comment from nowhere," an unpredicated excerpt from whatever he is thinking about. For example, I was over there for a Steelers game on a damp November day. I think they were playing the Ravens, their blood rival. So, the carnage was fairly medieval. ...

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