Set names for a LazyColumn

Assigns names to the underlying data of a LazyColumn, returning a new LazyColumn with the same scale and location as the original. This enables name-based subsetting via [ on LazyColumn objects, mirroring stats::setNames() for ordinary vectors.

Usage

# S4 method for class 'LazyColumn,character'
setNames(object = nm, nm)

Arguments

object

A LazyColumn object.

nm

A character vector of names, with length equal to length(object@data).

Value

A new LazyColumn with named data, preserving the original scale and location.

Examples

set.seed(123)
mat_a <- matrix(rnorm(500), nrow = 50, ncol = 10)
lazy_a <- LazyMatrix(mat_a, "sd", "mean")
lazy_c <- lazy_a[, 2]
lazy_named <- setNames(lazy_c[1:26], letters[1:26])
lazy_named["a"]
#>         a 
#> 0.2096104