List recognized file formats (types) for read() and write()

Display information about data types that can read() and write() can use, as well as, the original functions that are delegated (see they respective help pages for more info and to know which additional parameters can be used in read() and write()).

Usage

data_types(types_only = FALSE, view = TRUE)

Arguments

types_only: If TRUE, only a vector of types is returned, otherwise, a tibble with full specifications is provided.
view: If TRUE, the result is "viewed" (displayed in a table in a separate window, if the user interface allows it, e.g., in RStudio) and returned invisibly. Otherwise, the results are returned normally.

Value

An tibble with types_only = FALSE, or a character vector.

Details

The function is mainly designed to be used interactively and to provide information about file types that can be read() or write(). This cannot be done through a man page because this list is dynamic and other packages could add or change entries there. With view = FALSE, the function can, nevertheless, be also used in a script or a R Markdown/Notebook document.

Author

Philippe Grosjean phgrosjean@sciviews.org

Examples

if (FALSE) {
data_types()
data_types(TRUE)
}
# For non-interactive use, specify view = FALSE
data_types(view = FALSE)
#> # A tibble: 32 × 5
#>    type  read_fun             read_header         write_fun              comment
#>    <chr> <chr>                <chr>               <chr>                  <chr>  
#>  1 csv   readr::read_csv      data.io::hread_text readr::write_csv       comma …
#>  2 csv2  readr::read_csv2     data.io::hread_text NA                     semico…
#>  3 xlcsv readr::read_csv      data.io::hread_text readr::write_excel_csv write …
#>  4 tsv   readr::read_tsv      data.io::hread_text readr::write_tsv       tab se…
#>  5 fwf   readr::read_fwf      data.io::hread_text NA                     fixed …
#>  6 log   readr::read_log      NA                  NA                     standa…
#>  7 rds   readr::read_rds      NA                  readr::write_rds       R data…
#>  8 txt   readr::read_file     NA                  readr::write_file      text f…
#>  9 raw   readr::read_file_raw NA                  NA                     binary…
#> 10 ssv   readr::read_table    data.io::hread_text NA                     space …
#> # ℹ 22 more rows
data_types(TRUE, view = FALSE)
#>  [1] "csv"      "csv2"     "xlcsv"    "tsv"      "fwf"      "log"     
#>  [7] "rds"      "txt"      "raw"      "ssv"      "ssv2"     "csv.gz"  
#> [13] "csv2.gz"  "tsv.gz"   "txt.gz"   "csv.bz2"  "csv2.bz2" "tsv.bz2" 
#> [19] "txt.bz2"  "csv.xz"   "csv2.xz"  "tsv.xz"   "txt.xz"   "xls"     
#> [25] "xlsx"     "dta"      "sas"      "sas7bdat" "sav"      "zsav"    
#> [31] "por"      "xpt"