indexes_l: Construct a lens into a subset of an object
In lenses: Elegant Data Manipulation with Lenses

This is the lens version of [

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indexes_l(els)

indexes(els)

els

a subset vector, can be integer, character of logical, pointing to one or more elements of the object

x <- 1:10
view(x, indexes_l(3:5))
set(x, indexes_l(c(1,10)), NA)
head(view(iris, indexes_l(c("Sepal.Length", "Species"))))

lenses documentation built on May 2, 2019, 8:51 a.m.

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