No doubt it has the weight of history behind it but 'filter' is a crappy name for a function. Quick, does it keep or toss matches?
@hadleywickham @peterseibel I would use "project" for variables and "select" for rows, by analogy with relational algebra.
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@avibryant I like it - thanks!Thanks. Twitter will use this to make your timeline better. UndoUndo
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