Package: vroom 1.6.5.9000

Jennifer Bryan

vroom: Read and Write Rectangular Text Data Quickly

The goal of 'vroom' is to read and write data (like 'csv', 'tsv' and 'fwf') quickly. When reading it uses a quick initial indexing step, then reads the values lazily , so only the data you actually use needs to be read. The writer formats the data in parallel and writes to disk asynchronously from formatting.

Authors:Jim Hester [aut], Hadley Wickham [aut], Jennifer Bryan [aut, cre], Shelby Bearrows [ctb], https://github.com/mandreyel/ [cph], Jukka Jylänki [cph], Mikkel Jørgensen [cph], Posit Software, PBC [cph, fnd]

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vroom/json (API)
NEWS

# Install vroom in R:
install.packages('vroom', repos = c('https://tidyverse.r-universe.dev', 'https://cloud.r-project.org'))

Peer review:

Bug tracker:https://github.com/tidyverse/vroom/issues

Uses libs:
  • c++– GNU Standard C++ Library v3

On CRAN:

csvcsv-parserfixed-width-texttsvtsv-parser

60 exports 611 stars 16.40 score 22 dependencies 3353 dependents 641.4k downloads

Last updated 7 months agofrom:788df43997c0cee87588cc6c2bafd12784f51b83

Exports:as.col_speccol_big_integercol_charactercol_datecol_datetimecol_doublecol_factorcol_guesscol_integercol_logicalcol_numbercol_skipcol_timecolscols_condensecols_onlycontainsdate_namesdate_names_langdate_names_langsdefault_localeends_witheverythingfwf_colsfwf_emptyfwf_positionsfwf_widthsgen_charactergen_dategen_datetimegen_doublegen_factorgen_integergen_logicalgen_namegen_numbergen_tblgen_timeguess_typelast_collocalematchesnum_rangeone_ofoutput_columnproblemsspecstarts_withvroomvroom_altrepvroom_altrep_optsvroom_examplevroom_examplesvroom_formatvroom_fwfvroom_linesvroom_progressvroom_strvroom_writevroom_write_lines

Dependencies:bitbit64clicpp11crayonfansigluehmslifecyclemagrittrpillarpkgconfigprettyunitsprogressR6rlangtibbletidyselecttzdbutf8vctrswithr

Get started with vroom

Rendered fromvroom.Rmdusingknitr::rmarkdownon Jun 08 2024.

Last update: 2023-10-07
Started: 2019-03-22

Vroom Benchmarks

Rendered frombenchmarks.Rmdusingknitr::rmarkdownon Jun 08 2024.

Last update: 2022-09-30
Started: 2019-02-19

Readme and manuals

Help Manual

Help pageTopics
Create column specificationcols cols_only col_big_integer col_character col_date col_datetime col_double col_factor col_guess col_integer col_logical col_number col_skip col_time col_types
Examine the column specifications for a data framecols_condense spec
Create or retrieve date namesdate_names date_names_lang date_names_langs
Generate a random tibblegen_tbl
Generate individual vectors of the types supported by vroomgenerators gen_character gen_date gen_datetime gen_double gen_factor gen_integer gen_logical gen_name gen_number gen_time
Guess the type of a vectorguess_type
Create localesdefault_locale locale
Retrieve parsing problemsproblems
Read a delimited file into a tibblevroom
Show which column types are using Altrepvroom_altrep
Show which column types are using Altrepvroom_altrep_opts
Get path to vroom examplesvroom_example vroom_examples
Convert a data frame to a delimited stringvroom_format
Read a fixed width file into a tibblefwf_cols fwf_empty fwf_positions fwf_widths vroom_fwf
Read lines from a filevroom_lines
Determine whether progress bars should be shownvroom_progress
Structure of objectsvroom_str
Write a data frame to a delimited filevroom_write
Write lines to a filevroom_write_lines