Package index • vroom

Read rectangular files These functions parse rectangular files (like csv or fixed-width format) into tibbles. They specify the overall structure of the file, and how each line is divided up into fields.
`vroom()`	Read a delimited file into a tibble
`vroom_fwf()` `fwf_empty()` `fwf_widths()` `fwf_positions()` `fwf_cols()`	Read a fixed width file into a tibble
`problems()`	Retrieve parsing problems
Write rectangular files These functions write data frames to disk, or to convert them to in-memory strings.
`vroom_write()`	Write a data frame to a delimited file
`vroom_write_lines()`	Write lines to a file
`vroom_format()`	Convert a data frame to a delimited string
`output_column()`	Preprocess column for output
Column specification The column specification describes how each column is parsed from a character vector in to a more specific data type. vroom does make an educated guess about the type of each column, but you’ll need override those guesses when it gets them wrong.
`as.col_spec()`	Coerce to a column specification
`cols()` `cols_only()` `col_logical()` `col_integer()` `col_big_integer()` `col_double()` `col_character()` `col_skip()` `col_number()` `col_guess()` `col_factor()` `col_datetime()` `col_date()` `col_time()`	Create column specification
`cols_condense()` `spec()`	Examine the column specifications for a data frame
`guess_type()`	Guess the type of a vector
Locale controls The “locale” controls all options that vary from country-to-country or language-to-language. This includes things like the character used as the decimal mark, the names of days of the week, and the encoding. See `vignette("locales")` for more details.
`locale()` `default_locale()`	Create locales
`date_names()` `date_names_lang()` `date_names_langs()`	Create or retrieve date names
Data generation vroom provides a number of functions to generate datasets based on a column specification. These are mainly used for development and benchmarking, but can also be useful for reproducing bugs without requiring the original dataset.
`gen_tbl()`	Generate a random tibble
`gen_character()` `gen_double()` `gen_number()` `gen_integer()` `gen_factor()` `gen_time()` `gen_date()` `gen_datetime()` `gen_logical()` `gen_name()`	Generate individual vectors of the types supported by vroom
Misc tools These functions are used as helpers for other functions, or to inspect objects.
`vroom_lines()`	Read lines from a file
`vroom_altrep_opts()`	Show which column types are using Altrep
`vroom_altrep()`	Show which column types are using Altrep
`vroom_example()` `vroom_examples()`	Get path to vroom examples
`vroom_progress()`	Determine whether progress bars should be shown
`vroom_str()`	Structure of objects

Reference

Read rectangular files

Write rectangular files

Column specification

Locale controls

Data generation

Misc tools