group_by_prepare: Prepare for grouping and other operations

In hadley/dplyr: A Grammar of Data Manipulation

Prepare for grouping and other operations

Description

⁠*_prepare()⁠ performs standard manipulation that is needed prior to actual data processing. They are only be needed by packages that implement dplyr backends.

Usage

distinct_prepare(
  .data,
  vars,
  group_vars = character(),
  .keep_all = FALSE,
  caller_env = caller_env(2),
  error_call = caller_env()
)

group_by_prepare(
  .data,
  ...,
  .add = FALSE,
  .dots = deprecated(),
  add = deprecated(),
  error_call = caller_env()
)

Value

A list

data	Modified tbl
groups	Modified groups

hadley/dplyr documentation built on Nov. 6, 2024, 4:48 p.m.