Package: collapse
Title: Advanced and Fast Data Transformation
Version: 2.1.8
Date: 2026-08-29
Authors@R: c(
           person("Sebastian", "Krantz", role = c("aut", "cre"), 
                  email = "sebastian.krantz@graduateinstitute.ch", 
                  comment = c(ORCID = "0000-0001-6212-5229")),
           person("Matt", "Dowle", role = "ctb"),
           person("Arun", "Srinivasan", role = "ctb"),
           person("Morgan", "Jacob", role = "ctb"),
           person("Dirk", "Eddelbuettel", role = "ctb"),
           person("Laurent", "Berge", role = "ctb"),
           person("Kevin", "Tappe", role = "ctb"),
           person("Alina", "Cherkas", role = "ctb"),
           person("Ivan", "Krylov", role = "ctb"),
           person("R Core Team and contributors worldwide", role = "ctb"),
           person("Martyn", "Plummer", role = "cph"),
           person("1999-2016 The R Core Team", role = "cph")
           )
Description: A large C/C++-based package for advanced data
        transformation and statistical computing in R that is extremely
        fast, class-agnostic, robust, and programmer friendly. Core
        functionality includes a rich set of S3 generic grouped and
        weighted statistical functions for vectors, matrices and data
        frames, which provide efficient low-level vectorizations,
        OpenMP multithreading, and skip missing values by default.
        These are integrated with fast grouping and ordering algorithms
        (also callable from C), and efficient data manipulation
        functions. The package also provides a flexible and rigorous
        approach to time series and panel data in R, fast functions for
        data transformation and common statistical procedures, detailed
        (grouped, weighted) summary statistics, powerful tools to work
        with nested data, fast data object conversions, functions for
        memory efficient R programming, and helpers to effectively deal
        with variable labels, attributes, and missing data. It
        seamlessly supports base R objects/classes as well as 'units',
        'integer64', 'xts'/ 'zoo', 'tibble', 'grouped_df',
        'data.table', 'sf', and 'pseries'/'pdata.frame'. For a concise
        overview of the package see Krantz (2026)
        <doi:10.18637/jss.v116.i01>.
URL: https://fastverse.org/collapse/,
        https://github.com/fastverse/collapse
BugReports: https://github.com/fastverse/collapse/issues
License: GPL (>= 2) | file LICENSE
Encoding: UTF-8
LazyData: true
Depends: R (>= 4.1.0)
Imports: Rcpp (>= 1.0.1)
LinkingTo: Rcpp
Suggests: fastverse, data.table, magrittr, kit, xts, zoo, plm, fixest,
        vars, RcppArmadillo, RcppEigen, tibble, dplyr, ggplot2, scales,
        microbenchmark, testthat, covr, knitr, rmarkdown, withr, bit64
VignetteBuilder: knitr
Repository: https://ar-puuk.r-universe.dev
Date/Publication: 2026-08-30 03:59:45 UTC
RemoteUrl: https://github.com/SebKrantz/collapse
RemoteRef: HEAD
RemoteSha: e0bfc38f145fdcc72817b38cdcad8974ae1c2776
NeedsCompilation: yes
Packaged: 2026-09-29 07:44:21 UTC; root
Author: Sebastian Krantz [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-6212-5229>),
  Matt Dowle [ctb],
  Arun Srinivasan [ctb],
  Morgan Jacob [ctb],
  Dirk Eddelbuettel [ctb],
  Laurent Berge [ctb],
  Kevin Tappe [ctb],
  Alina Cherkas [ctb],
  Ivan Krylov [ctb],
  R Core Team and contributors worldwide [ctb],
  Martyn Plummer [cph],
  1999-2016 The R Core Team [cph]
Maintainer: Sebastian Krantz <sebastian.krantz@graduateinstitute.ch>
