right_join_warn {CellaRepertorium} | R Documentation

## Perform a `dplyr::left_join()` but check for non-key overlapping fields

### Description

Perform a `dplyr` join, but either warn if the two tables share non-key fields If `overwrite = TRUE`, then shared columns will pull from `x` otherwise a suffix will be added to `y`. To perform this check, `by` must be specified, and it is an error if it is not.

### Usage

    right_join_warn(...)

    left_join_warn(x, y, by, overwrite = FALSE, join = left_join, ...)

### Arguments

`...` | passed to joining function
`x` | A pair of data frames, data frame extensions (e.g. a tibble), or lazy data frames (e.g. from dbplyr or dtplyr). See Methods, below, for more details.
`y` | A pair of data frames, data frame extensions (e.g. a tibble), or lazy data frames (e.g. from dbplyr or dtplyr). See Methods, below, for more details.
`by` | `character` specifying columns in `x` and `y` to key on.
`overwrite` | `logical` – should non-key fields in y be overwritten using x, or should a suffix (".y") be added
`join` | function giving the type of join to perform, eg, left, right, inner, outer.

### Value

`data.frame` or `tibble`

### Functions

- `right_join_warn`: perform a `dplyr::right_join()`

### Examples

    left_join_warn(mtcars, mtcars, by  = 'mpg')
    left_join_warn(mtcars, mtcars, by = 'mpg', overwrite = TRUE)

[Package CellaRepertorium version 1.2.0 Index]