focal: Elegant Data Manipulation with Lenses

This is the lens version of [[

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index_l(el)

index(el)

`el`	The element the lens should point to can be an `integer` or name.

x <- 1:10
view(x, index_l(1))
set(x, index(5), 50)
head(view(iris, index(2)))

cfhammill/focal documentation built on May 23, 2019, 6:04 p.m.

cfhammill/focal index

README.md

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Description