rename.dtplyr_step: Rename columns using their names

In dtplyr: Data Table Back-End for 'dplyr'

Rename columns using their names

Description

These are methods for the dplyr generics rename() and rename_with(). They are both translated to data.table::setnames().

Usage

## S3 method for class 'dtplyr_step'
rename(.data, ...)

## S3 method for class 'dtplyr_step'
rename_with(.data, .fn, .cols = everything(), ...)

Arguments

.data	A lazy_dt()
...	For rename(): <tidy-select> Use new_name = old_name to rename selected variables. For rename_with(): additional arguments passed onto .fn.
.fn	A function used to transform the selected .cols. Should return a character vector the same length as the input.
.cols	<tidy-select> Columns to rename; defaults to all columns.

Examples

library(dplyr, warn.conflicts = FALSE)
dt <- lazy_dt(data.frame(x = 1, y = 2, z = 3))
dt %>% rename(new_x = x, new_y = y)
dt %>% rename_with(toupper)

dtplyr documentation built on March 31, 2023, 9:13 p.m.