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coalesce with wrapr

coalesce is a classic useful SQL operator that picks the first non-NULL value in a sequence of values.

We thought we would share a nice version of it for picking non-NA R with convenient operator infix notation wrapr::coalesce(). Here is a short example of it in action:

library("wrapr")

NA %?% 0

# [1] 0

A more substantial application is the following.

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