R: Data pronoun for tidy evaluation

tidyeval-data {rlang} | R Documentation

## Data pronoun for tidy evaluation

### Description

This pronoun allows you to be explicit when you refer to an object inside the data. Referring to the `.data` pronoun rather than to the original data frame has several advantages:

- Sometimes a computation is not about the whole data but about a subset. For example if you supply a grouped data frame to a dplyr verb, the `.data` pronoun contains the group subset.

- It lets dplyr know that you're referring to a column from the data which is helpful to generate correct queries when the source is a database.

The `.data` object exported here is useful to import in your package namespace to avoid a `R CMD check` note when referring to objects from the data mask.

### Usage

    .data

### Format

An object of class `rlang_data_pronoun` of length 0.

[Package rlang version 0.2.2 Index]