R Reduce、Filter、Find、Map、Negate、Position

Reduce(f, x, init, right = FALSE, accumulate = FALSE)
Filter(f, x)
Find(f, x, right = FALSE, nomatch = NULL)
Map(f, ...)
Negate(f)
Position(f, x, right = FALSE, nomatch = NA_integer_)

  

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转载自www.cnblogs.com/JoAnnal/p/12505548.html
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