# R: Export a data frame to disk in one of many formats

Export {car} | R Documentation

## Export a data frame to disk in one of many formats

### Description

Uses the `export` function in the rio package to export a file to disk. This function adds an argument for converting row.names to a column in the resulting file.

### Usage

    Export(x, file, format, ..., keep.row.names)

### Arguments

`x` | A data frame or matrix to be written to a file.
`file` | A character string naming a file. If the file name has an extension, such as `.xlsx`, the extention is used to infer the type of file to be exported. See `export` for the file types supported.
`format` | see `export`.
`...` | Additional arguments; see `export`.
`keep.row.names` | If set to `TRUE`, then the data frame's row.names are appended to the left of the data frame with the name "id". If set to quoted character string, the row.names are added using the character string as its name. If set to `FALSE` row.names are lost.

### Details

This is a convenience function in the car package for exporting (writing) a data frame to a file in a wide variety of formats including csv, Microsoft Excel. It optionally allows converting the row.names for the data frame to a column before writing. It then calls `export` in the `rio` package. That function in turn uses many other packages and functions for writing the function to a file.

### Value

The name of the output file as a character string (invisibly).

### Author(s)

Sanford Weisberg sandy@umn.edu

### References

Chung-hong Chan, Geoffrey CH Chan, Thomas J. Leeper, and Jason Becker (2017). rio: A Swiss-army knife for data file I/O. R package version 0.5.0.

### See Also

`export`, `Import`

### Examples

    Export(Duncan, "Duncan.csv", keep.row.names="occupation")
    Duncan2 <- Import("Duncan.csv") # Automatically restores row.names
    identical(Duncan, Duncan2)
    # cleanup
    unlink("Duncan.csv")

[Package car version 3.0-2 Index]