If you’re an analytically inclined baseball fan, April truly is the cruelest month. Okay so yeah, I admit that T.S. Eliot wasn’t actually talking about the month (or more) long battle of wills between people quoting month (sometimes only weeks) long data samples as if they mean something and the people screaming “small sample size!” into the yawning void. That said, it can be difficult to know when the “roots that clutch” are solid enough to start to trust what the statistics are telling you, but we (and some much smarter people from other parts of the internets), are here to help.
There are a few key things to understand about advanced metrics, especially early in the year. Continue reading