copy: Copy an entire object

In maditr: Fast Data Aggregation, Modification, and Filtering with Pipes and 'data.table'

Copy an entire object

Description

Mainly intended to copy data.table objects because by default they are modified by reference. See example.

Usage

copy(x)

Arguments

x

object

Value

copy of the object 'x'

Examples

data(mtcars)
dt_mtcars = as.data.table(mtcars)
dt_mtcars2 = dt_mtcars
dt_mtcars3 = copy(dt_mtcars)
let(dt_mtcars, new = 1)

head(dt_mtcars2) # we see 'new' column
head(dt_mtcars3) # no 'new' column

maditr documentation built on April 2, 2022, 5:05 p.m.