Method · outfield_offense@v1

Outfield offense

Every plate appearance taken by a player whose listed position is left, center or right field, added up for the whole team, then expressed as on-base plus slugging. It asks one question: when this team's outfielders hit, what happened?

The filter, exactly as it runs

position IN ('LF','CF','RF','OF')

Parameters

`positions`	LF, CF, RF, OF
`min_team_at_bats`	500

Where this is arguable

Listed position, not where a player actually stood on a given day. A utility man who played 40 games in the outfield counts entirely as an outfielder or not at all.
OPS weights slugging and on-base equally, which slightly overvalues power. wOBA is the better measure and tells the same story here.
Counts designated hitter appearances by outfielders, which flatters teams that rest their bats in the lineup.

These are the objections I already know about. If you have a better one, or you think a different threshold tells a truer story, say so and I will re-run it with your numbers and publish what comes back.

Version 1. Older versions are never deleted, so a piece that citesoutfield_offense@v1 stays reproducible after this definition is revised. Source: Data: nflverse (nflfastR), CC-BY 4.0