rio (version 0.5.5)

convert: Convert from one file format to another

Description

This function constructs a data frame from a data file using import and uses export to write the data to disk in the format indicated by the file extension.

Usage

convert(in_file, out_file, in_opts = list(), out_opts = list())

Arguments

in_file

A character string naming an input file.

out_file

A character string naming an output file.

in_opts

A named list of options to be passed to import.

out_opts

A named list of options to be passed to export.

Value

A character string containing the name of the output file (invisibly).

See Also

Luca Braglia has created a Shiny app called rioweb that provides access to the file conversion features of rio through a web browser. The app is featured in the RStudio Shiny Gallery.

Examples

# create a file to convert
export(mtcars, "mtcars.dta")

# convert Stata to CSV and open converted file
convert("mtcars.dta", "mtcars.csv")
head(import("mtcars.csv"))

# correct an erroneous file format
export(mtcars, "mtcars.csv", format = "tsv")
convert("mtcars.csv", "mtcars.csv", in_opts = list(format = "tsv"))

# convert serialized R data.frame to JSON
export(mtcars, "mtcars.rds")
convert("mtcars.rds", "mtcars.json")

# cleanup
unlink("mtcars.csv")
unlink("mtcars.dta")
unlink("mtcars.rds")
unlink("mtcars.json")


# convert from the command line:
Rscript -e "rio::convert('mtcars.dta', 'mtcars.csv')"