pkgsearch uses R-hub web services that munge CRAN metadata and let you access it through several lenses.
Install the latest pkgsearch release from CRAN:
Do you need to find packages solving a particular problem, e.g. “permutation test”?
#> - "permutation test" ----------------------------------- 1835 packages in 0.014 seconds -
#> # package version by @ title
#> 1 100 coin 1.3.1 Torsten Hothorn 3M Conditional Inference Procedu...
#> 2 33 flip 2.5.0 Livio Finos 1y Multivariate Permutation Tests
#> 3 31 exactRankTests 0.8.30 Torsten Hothorn 7M Exact Distributions for Rank ...
#> 4 30 perm 1.0.0.0 Michael Fay 9y Exact or Asymptotic permutati...
#> 5 25 jmuOutlier 2.2 Steven T. Garren 4M Permutation Tests for Nonpara...
#> 6 21 wPerm 1.0.1 Neil A. Weiss 4y Permutation Tests
#> 7 18 cpt 1.0.2 Johann Gagnon-Bartsch 1y Classification Permutation Test
#> 8 18 GlobalDeviance 0.4 Frederike Fuhlbrueck 6y Global Deviance Permutation T...
#> 9 18 permutes 1.0 Cesko C. Voeten 4M Permutation Tests for Time Se...
#> 10 17 AUtests 0.98 Arjun Sondhi 3y Approximate Unconditional and...pkgsearch uses an R-hub web service and a careful ranking that puts popular packages before less frequently used ones.
For the search mentioned above, and other points of entry to CRAN metadata, you can use pkgsearch RStudio add-in!
Select the “CRAN package search” addin from the menu, or start it with pkg_search_addin().
Do you want to find the dependencies the first versions of testthat had and when each of these versions was released?
#> # A tibble: 25 x 25
#> Package Type Title Version Author Maintainer Description URL License LazyData
#> * <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
#> 1 testth… Pack… Tool… 0.1 Hadle… Hadley Wi… Test_that … http… GPL true
#> 2 testth… Pack… Test… 0.1.1 Hadle… Hadley Wi… A testing … http… GPL true
#> 3 testth… Pack… Test… 0.2 Hadle… Hadley Wi… A testing … http… GPL true
#> 4 testth… Pack… Test… 0.3 Hadle… Hadley Wi… A testing … http… GPL true
#> 5 testth… Pack… Test… 0.4 Hadle… Hadley Wi… A testing … http… GPL true
#> 6 testth… Pack… Test… 0.5 Hadle… Hadley Wi… A testing … http… GPL true
#> 7 testth… Pack… Test… 0.6 Hadle… Hadley Wi… A testing … http… GPL true
#> 8 testth… Pack… Test… 0.7 Hadle… Hadley Wi… A testing … http… GPL true
#> 9 testth… Pack… Test… 0.7.1 Hadle… Hadley Wi… A testing … http… GPL true
#> 10 testth… Pack… Test… 0.8 Hadle… Hadley Wi… A testing … http… MIT + … true
#> # … with 15 more rows, and 15 more variables: Collate <chr>, Packaged <chr>,
#> # Repository <chr>, `Date/Publication` <chr>, crandb_file_date <chr>, date <chr>,
#> # dependencies <list>, NeedsCompilation <chr>, Roxygen <chr>, `Authors@R` <chr>,
#> # BugReports <chr>, RoxygenNote <chr>, VignetteBuilder <chr>, Encoding <chr>,
#> # MD5sum <chr>Do you want to know what packages are trending on CRAN these days? pkgsearch can help!
#> # A tibble: 100 x 2
#> package score
#> <chr> <chr>
#> 1 effectsize 62015.4696132596685100
#> 2 leaflet.providers 6643.3748373908195500
#> 3 farver 2829.3291388772503400
#> 4 renv 1054.6458141674333000
#> 5 joint.Cox 713.9481572914829800
#> 6 rsq 605.0799623706491100
#> 7 NNS 604.4613918017159200
#> 8 fable 575.6197740941763200
#> 9 lobstr 558.1014729950900200
#> 10 feasts 523.3285233285233300
#> # … with 90 more rows#> # A tibble: 100 x 2
#> package count
#> <chr> <chr>
#> 1 magrittr 865875
#> 2 aws.s3 727198
#> 3 aws.ec2metadata 719639
#> 4 rsconnect 700497
#> 5 rlang 351085
#> 6 Rcpp 268809
#> 7 dplyr 264531
#> 8 ellipsis 243197
#> 9 ggplot2 237589
#> 10 purrr 229599
#> # … with 90 more rowsAre you curious about the latest releases or archivals?
#> CRAN events (events)---------------------------------------------------------------------
#> . When Package Version Title
#> + 3 hours kohonen 3.0.10 Supervised and Unsupervised Self-Organising Maps
#> + 3 hours atable 0.1.4 Create Tables for Reporting Clinical Trials
#> + 4 hours rbiouml 1.9 Interact with BioUML Server
#> + 5 hours lillies 0.2.5 Estimation of Life Years Lost
#> + 6 hours CovTools 0.5.3 Statistical Tools for Covariance Analysis
#> + 6 hours quanteda 1.5.2 Quantitative Analysis of Textual Data
#> + 6 hours sptm 2019.11-25 SemiParametric Transformation Model Methods
#> + 7 hours IPDFileCheck 0.6.0 Basic Functions to Check Readability, Consistency,...
#> + 14 hours lcc 1.0.3 Longitudinal Concordance Correlation
#> + 14 hours MLeval 0.1 Machine Learning Model EvaluationBy default it returns a short summary of the ten best search hits. Their details can be printed by using the format = "long" option of pkg_search(), or just calling pkg_search() again, without any arguments, after a search:
#> - "C++" ------------------------------------------------- 7973 packages in 0.01 seconds -
#> # package version by @ title
#> 1 100 Rcpp 1.0.3 Dirk Eddelbuettel 18d Seamless R and C++ Integration
#> 2 30 BH 1.69.0.1 Dirk Eddelbuettel 11M Boost C++ Header Files
#> 3 16 markdown 1.1 Yihui Xie 4M Render Markdown with the C Libra...
#> 4 14 StanHeaders 2.19.0 Ben Goodrich 3M C++ Header Files for Stan
#> 5 12 inline 0.3.15 Dirk Eddelbuettel 2y Functions to Inline C, C++, Fort...
#> 6 11 RcppProgress 0.4.1 Karl Forner 2y An Interruptible Progress Bar wi...
#> 7 10 SnowballC 0.6.0 Milan Bouchet-Valat 10M Snowball Stemmers Based on the C...
#> 8 10 covr 3.3.2 Jim Hester 1M Test Coverage for Packages
#> 9 7 glpkAPI 1.3.1 Mayo Roettger 1y R Interface to C API of GLPK
#> 10 6 RNifti 1.0.0 Jon Clayden 5d Fast R and C++ Access to NIfTI I...#> - "C++" ------------------------------------------------- 7973 packages in 0.01 seconds -
#>
#> 1 Rcpp @ 1.0.3 Dirk Eddelbuettel, 18 days ago
#> --------------
#> # Seamless R and C++ Integration
#> The 'Rcpp' package provides R functions as well as C++ classes which offer a
#> seamless integration of R and C++. Many R data types and objects can be mapped
#> back and forth to C++ equivalents which facilitates both writing of new code
#> as well as easier integration of third-party libraries. Documentation about
#> 'Rcpp' is provided by several vignettes included in this package, via the
#> 'Rcpp Gallery' site at <http://gallery.rcpp.org>, the paper by Eddelbuettel
#> and Francois (2011, <doi:10.18637/jss.v040.i08>), the book by Eddelbuettel
#> (2013, <doi:10.1007/978-1-4614-6868-4>) and the paper by Eddelbuettel and
#> Balamuta (2018, <doi:10.1080/00031305.2017.1375990>); see 'citation("Rcpp")'
#> for details.
#> http://www.rcpp.org
#> http://dirk.eddelbuettel.com/code/rcpp.html
#> https://github.com/RcppCore/Rcpp
#>
#> 2 BH @ 1.69.0.1 Dirk Eddelbuettel, 11 months ago
#> ---------------
#> # Boost C++ Header Files
#> Boost provides free peer-reviewed portable C++ source libraries. A large part
#> of Boost is provided as C++ template code which is resolved entirely at
#> compile-time without linking. This package aims to provide the most useful
#> subset of Boost libraries for template use among CRAN package. By placing
#> these libraries in this package, we offer a more efficient distribution system
#> for CRAN as replication of this code in the sources of other packages is
#> avoided. As of release 1.69.0-1, the following Boost libraries are included:
#> 'algorithm' 'align' 'any' 'atomic' 'bimap' 'bind' 'circular_buffer' 'compute'
#> 'concept' 'config' 'container' 'date_time' 'detail' 'dynamic_bitset'
#> 'exception' 'filesystem' 'flyweight' 'foreach' 'functional' 'fusion'
#> 'geometry' 'graph' 'heap' 'icl' 'integer' 'interprocess' 'intrusive' 'io'
#> 'iostreams' 'iterator' 'math' 'move' 'mpl' 'multiprcecision' 'numeric'
#> 'pending' 'phoenix' 'preprocessor' 'propery_tree' 'random' 'range'
#> 'scope_exit' 'smart_ptr' 'sort' 'spirit' 'tuple' 'type_traits' 'typeof'
#> 'unordered' 'utility' 'uuid'.
#>
#> 3 markdown @ 1.1 Yihui Xie, 4 months ago
#> ----------------
#> # Render Markdown with the C Library 'Sundown'
#> Provides R bindings to the 'Sundown' Markdown rendering library
#> (<https://github.com/vmg/sundown>). Markdown is a plain-text formatting syntax
#> that can be converted to 'XHTML' or other formats. See
#> <http://en.wikipedia.org/wiki/Markdown> for more information about Markdown.
#> https://github.com/rstudio/markdown
#>
#> 4 StanHeaders @ 2.19.0 Ben Goodrich, 3 months ago
#> ----------------------
#> # C++ Header Files for Stan
#> The C++ header files of the Stan project are provided by this package, but it
#> contains no R code or function documentation. There is a shared object
#> containing part of the 'CVODES' library, but it is not accessible from R.
#> 'StanHeaders' is only useful for developers who want to utilize the
#> 'LinkingTo' directive of their package's DESCRIPTION file to build on the Stan
#> library without incurring unnecessary dependencies. The Stan project develops
#> a probabilistic programming language that implements full or approximate
#> Bayesian statistical inference via Markov Chain Monte Carlo or 'variational'
#> methods and implements (optionally penalized) maximum likelihood estimation
#> via optimization. The Stan library includes an advanced automatic
#> differentiation scheme, 'templated' statistical and linear algebra functions
#> that can handle the automatically 'differentiable' scalar types (and doubles,
#> 'ints', etc.), and a parser for the Stan language. The 'rstan' package
#> provides user-facing R functions to parse, compile, test, estimate, and
#> analyze Stan models.
#> http://mc-stan.org/
#>
#> 5 inline @ 0.3.15 Dirk Eddelbuettel, 2 years ago
#> -----------------
#> # Functions to Inline C, C++, Fortran Function Calls from R
#> Functionality to dynamically define R functions and S4 methods with 'inlined'
#> C, C++ or Fortran code supporting the .C and .Call calling conventions.
#>
#> 6 RcppProgress @ 0.4.1 Karl Forner, 2 years ago
#> ----------------------
#> # An Interruptible Progress Bar with OpenMP Support for C++ in R Packages
#> Allows to display a progress bar in the R console for long running
#> computations taking place in c++ code, and support for interrupting those
#> computations even in multithreaded code, typically using OpenMP.
#> https://github.com/kforner/rcpp_progress
#>
#> 7 SnowballC @ 0.6.0 Milan Bouchet-Valat, 10 months ago
#> -------------------
#> # Snowball Stemmers Based on the C 'libstemmer' UTF-8 Library
#> An R interface to the C 'libstemmer' library that implements Porter's word
#> stemming algorithm for collapsing words to a common root to aid comparison of
#> vocabulary. Currently supported languages are Danish, Dutch, English, Finnish,
#> French, German, Hungarian, Italian, Norwegian, Portuguese, Romanian, Russian,
#> Spanish, Swedish and Turkish.
#> https://r-forge.r-project.org/projects/r-temis/
#>
#> 8 covr @ 3.3.2 Jim Hester, about a month ago
#> --------------
#> # Test Coverage for Packages
#> Track and report code coverage for your package and (optionally) upload the
#> results to a coverage service like 'Codecov' <http://codecov.io> or
#> 'Coveralls' <http://coveralls.io>. Code coverage is a measure of the amount of
#> code being exercised by a set of tests. It is an indirect measure of test
#> quality and completeness. This package is compatible with any testing
#> methodology or framework and tracks coverage of both R code and compiled
#> C/C++/FORTRAN code.
#> https://covr.r-lib.org
#> https://github.com/r-lib/covr
#>
#> 9 glpkAPI @ 1.3.1 Mayo Roettger, about a year ago
#> -----------------
#> # R Interface to C API of GLPK
#> R Interface to C API of GLPK, depends on GLPK Version >= 4.42.
#>
#> 10 RNifti @ 1.0.0 Jon Clayden, 5 days ago
#> -----------------
#> # Fast R and C++ Access to NIfTI Images
#> Provides very fast read and write access to images stored in the NIfTI-1 and
#> ANALYZE-7.5 formats, with seamless synchronisation between compiled C and
#> interpreted R code. Also provides a simple image viewer, and a C/C++ API that
#> can be used by other packages. Not to be confused with 'RNiftyReg', which
#> performs image registration.
#> https://github.com/jonclayden/RNiftiThe more() function can be used to display the next batch of search hits, batches contain ten packages by default. ps() is a shorter alias to pkg_search():
#> - "google" ---------------------------------------------- 126 packages in 0.008 seconds -
#> # package version by @ title
#> 1 100 googleVis 0.6.4 Markus Gesmann 6M R Interface to Google Charts
#> 2 77 googleAuthR 1.1.1 Mark Edmondson 3M Authenticate and Create Google ...
#> 3 66 lubridate 1.7.4 Vitalie Spinu 2y Make Dealing with Dates a Littl...
#> 4 63 gargle 0.4.0 Jennifer Bryan 2M Utilities for Working with Goog...
#> 5 52 googledrive 1.0.0 Jennifer Bryan 3M An Interface to Google Drive
#> 6 49 googleCloudStorageR 0.5.1 Mark Edmondson 3M Interface with Google Cloud Sto...
#> 7 48 googlesheets 0.3.0 Jennifer Bryan 1y Manage Google Spreadsheets from R
#> 8 44 plotKML 0.6.0 Tomislav Hengl 14d Visualization of Spatial and Sp...
#> 9 40 cld2 1.2 Jeroen Ooms 2y Google's Compact Language Detec...
#> 10 37 gsheet 0.4.2 Max Conway 3y Download Google Sheets Using Ju...#> - "google" ---------------------------------------------- 126 packages in 0.008 seconds -
#> # package version by @ title
#> 11 36 bigQueryR 0.5.0 Mark Edmondson 2M Interface with Google BigQuer...
#> 12 34 ggmap 3.0.0 ORPHANED 10M Spatial Visualization with gg...
#> 13 34 googlePolylines 0.7.2 David Cooley 1y Encoding Coordinates into 'Go...
#> 14 34 googleAnalyticsR 0.7.1 Mark Edmondson 22d Google Analytics API into R
#> 15 28 V8 2.3 Jeroen Ooms 5M Embedded JavaScript Engine for R
#> 16 27 gcite 0.10.1 John Muschelli 9M Google Citation Parser
#> 17 27 rgoogleslides 0.3.1 Hairizuan Noorazman 1y R Interface to Google Slides
#> 18 26 plusser 0.4.0 Christoph Waldhauser 6y A Google+ Interface for R
#> 19 26 ganalytics 0.10.7 Johann de Boer 9M Interact with 'Google Analytics'
#> 20 26 adwordsR 0.3.1 Sean Longthorpe 1y Access the 'Google Adwords' APIThe search server uses the stems of the words in the indexed metadata, and the search phrase. This means that “colour” and “colours” deliver the exact same result. So do “coloring”, “colored”, etc. (Unless one is happen to be an exact package name or match another non-stemmed field.)
#> - "colour" ---------------------------------------------- 201 packages in 0.009 seconds -
#> # package version by @ title
#> 1 100 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 2 71 colorspace 1.4.1 Achim Zeileis 8M A Toolbox for Manipulating and Assessing ...
#> 3 67 viridis 0.5.1 Simon Garnier 2y Default Color Maps from 'matplotlib'#> - "colours" --------------------------------------------- 198 packages in 0.007 seconds -
#> # package version by @ title
#> 1 100 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 2 71 colorspace 1.4.1 Achim Zeileis 8M A Toolbox for Manipulating and Assessing ...
#> 3 67 viridis 0.5.1 Simon Garnier 2y Default Color Maps from 'matplotlib'The most important feature of a search engine is the ranking of the results. The best results should be listed first. pkgsearch uses weighted scoring, where a match in the package title gets a higher score than a match in the package description. It also uses the number of reverse dependencies and the number of downloads to weight the scores:
#> # A tibble: 10 x 4
#> score package revdeps downloads_last_month
#> <dbl> <chr> <int> <int>
#> 1 13168. crayon 203 570439
#> 2 9408. colorspace 141 567057
#> 3 8765. viridis 109 240556
#> 4 5944. pillar 36 783872
#> 5 5730. colourpicker 31 25273
#> 6 4974. viridisLite 47 466781
#> 7 4837. shape 34 48705
#> 8 3887. RColorBrewer 451 517685
#> 9 3617. colorRamps 15 4968
#> 10 3432. dichromat 12 23156The search engine prefers matching whole phrases over single words. E.g. the search phrase “permutation test” will rank coin higher than testthat, even though testthat is a much better result for the single word “test”. (In fact, at the time of writing testthat is not even on the first page of results.)
#> - "permutation test" ----------------------------------- 1835 packages in 0.015 seconds -
#> # package version by @ title
#> 1 100 coin 1.3.1 Torsten Hothorn 3M Conditional Inference Procedu...
#> 2 33 flip 2.5.0 Livio Finos 1y Multivariate Permutation Tests
#> 3 31 exactRankTests 0.8.30 Torsten Hothorn 7M Exact Distributions for Rank ...
#> 4 30 perm 1.0.0.0 Michael Fay 9y Exact or Asymptotic permutati...
#> 5 25 jmuOutlier 2.2 Steven T. Garren 4M Permutation Tests for Nonpara...
#> 6 21 wPerm 1.0.1 Neil A. Weiss 4y Permutation Tests
#> 7 18 cpt 1.0.2 Johann Gagnon-Bartsch 1y Classification Permutation Test
#> 8 18 GlobalDeviance 0.4 Frederike Fuhlbrueck 6y Global Deviance Permutation T...
#> 9 18 permutes 1.0 Cesko C. Voeten 4M Permutation Tests for Time Se...
#> 10 17 AUtests 0.98 Arjun Sondhi 3y Approximate Unconditional and...If the whole phrase does not match, pkgsearch falls back to individual matching words. For example, a match from either words is enough here, to get on the first page of results:
#> - "test http" ------------------------------------------ 5860 packages in 0.018 seconds -
#> # package version by @ title
#> 1 100 httptest 3.2.2 Neal Richardson 1y A Test Environment for HTTP Requests
#> 2 83 covr 3.3.2 Jim Hester 1M Test Coverage for Packages
#> 3 33 testthat 2.3.0 Hadley Wickham 21d Unit Testing for R
#> 4 16 psych 1.8.12 William Revelle 11M Procedures for Psychological, Psych...
#> 5 13 vcr 0.3.0 Scott Chamberlain 3M Record 'HTTP' Calls to Disk
#> 6 10 httr 1.4.1 Hadley Wickham 4M Tools for Working with URLs and HTTP
#> 7 8 webmockr 0.4.0 Scott Chamberlain 4M Stubbing and Setting Expectations o...
#> 8 8 bnlearn 4.5 Marco Scutari 4M Bayesian Network Structure Learning...
#> 9 7 RCurl 1.95.4.12 Duncan Temple Lang 9M General Network (HTTP/FTP/...) Clie...
#> 10 6 oompaBase 3.2.9 Kevin R. Coombes 3M Class Unions, Matrix Operations, an...The search engine uses a dictionary to make sure that package metadata and queries given in British and American English yield the same results. E.g. note the spelling of colour/color in the results:
#> - "colour" ---------------------------------------------- 201 packages in 0.007 seconds -
#> # package version by @ title
#> 1 100 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 2 71 colorspace 1.4.1 Achim Zeileis 8M A Toolbox for Manipulating and Asses...
#> 3 67 viridis 0.5.1 Simon Garnier 2y Default Color Maps from 'matplotlib'
#> 4 45 pillar 1.4.2 Kirill Müller 5M Coloured Formatting for Columns
#> 5 44 colourpicker 1.0 Dean Attali 2y A Colour Picker Tool for Shiny and f...
#> 6 38 viridisLite 0.3.0 Simon Garnier 2y Default Color Maps from 'matplotlib'...
#> 7 37 shape 1.4.4 Karline Soetaert 2y Functions for Plotting Graphical Sha...
#> 8 30 RColorBrewer 1.1.2 Erich Neuwirth 5y ColorBrewer Palettes
#> 9 27 colorRamps 2.3 Tim Keitt 7y Builds color tables
#> 10 26 dichromat 2.0.0 Thomas Lumley 7y Color Schemes for Dichromats#> - "color" ----------------------------------------------- 198 packages in 0.007 seconds -
#> # package version by @ title
#> 1 100 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 2 71 colorspace 1.4.1 Achim Zeileis 8M A Toolbox for Manipulating and Asses...
#> 3 67 viridis 0.5.1 Simon Garnier 2y Default Color Maps from 'matplotlib'
#> 4 45 pillar 1.4.2 Kirill Müller 5M Coloured Formatting for Columns
#> 5 44 colourpicker 1.0 Dean Attali 2y A Colour Picker Tool for Shiny and f...
#> 6 38 viridisLite 0.3.0 Simon Garnier 2y Default Color Maps from 'matplotlib'...
#> 7 37 shape 1.4.4 Karline Soetaert 2y Functions for Plotting Graphical Sha...
#> 8 30 RColorBrewer 1.1.2 Erich Neuwirth 5y ColorBrewer Palettes
#> 9 27 colorRamps 2.3 Tim Keitt 7y Builds color tables
#> 10 26 dichromat 2.0.0 Thomas Lumley 7y Color Schemes for DichromatsEspecially when searching for package maintainer names, it is convenient to use the corresponding ASCII letters for non-ASCII characters in search phrases. E.g. the following two queries yield the same results. Note that case is also ignored.
#> - "gabor" ------------------------------------------------ 87 packages in 0.008 seconds -
#> # package version by @ title
#> 1 100 igraph 1.2.4.1 Gábor Csárdi 7M Network Analysis and Visualization
#> 2 58 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 3 39 zoo 1.8.6 Achim Zeileis 6M S3 Infrastructure for Regular and Irregular...
#> 4 38 cli 1.1.0 Gábor Csárdi 8M Helpers for Developing Command Line Interfaces
#> 5 37 progress 1.2.2 Gábor Csárdi 6M Terminal Progress Bars#> - "Gábor" ------------------------------------------------ 87 packages in 0.008 seconds -
#> # package version by @ title
#> 1 100 igraph 1.2.4.1 Gábor Csárdi 7M Network Analysis and Visualization
#> 2 58 crayon 1.3.4 Gábor Csárdi 2y Colored Terminal Output
#> 3 39 zoo 1.8.6 Achim Zeileis 6M S3 Infrastructure for Regular and Irregular...
#> 4 38 cli 1.1.0 Gábor Csárdi 8M Helpers for Developing Command Line Interfaces
#> 5 37 progress 1.2.2 Gábor Csárdi 6M Terminal Progress BarsSee the complete documentation.
MIT @ Gábor Csárdi, RStudio, R Consortium.