grouped_df {dplyr} | R Documentation

## A grouped data frame.

### Description

The easiest way to create a grouped data frame is to call the `group_by()` method on a data frame or tbl: this will take care of capturing the unevaluated expressions for you.

### Usage

    grouped_df(data, vars, drop = TRUE)

    is.grouped_df(x)

    is_grouped_df(x)

### Arguments

`data` | a tbl or data frame.
`vars` | a character vector or a list of `name()`
`drop` | if `TRUE` preserve all factor levels, even those without data.

[Package dplyr version 0.7.0 Index]