Google allows users to search the Web for images, news, products, video, and other content. conference has been held annually, usually alternating between locations in Europe and North America. Objects in the function body remain local to the function, and any data type may be returned. If you have questions, you can call (401)-222-8022 from 8:30am to 4:30pm, and 2-1-1 after business hours. Currently, the CRAN package repository features 15713 available packages. C'mon, Let's Play! [10], A GNU package,[11] the official R software environment is written primarily in C, Fortran, and R itself[12] (thus, it is partially self-hosting) and is freely available under the GNU General Public License. Mission. R functionality is accessible from several scripting languages such as Python,[70] Perl,[71] Ruby,[72] F#,[73] and Julia. The following examples illustrate the basic syntax of the language and use of the command-line interface. For the Unicode block containing this character, see, Descendants and related characters in the Latin alphabet, Calligraphic variants in the Latin alphabet, Ancestors and siblings in other alphabets, LATIN LETTER SMALL CAPITAL R WITH RIGHT LEG, LATIN SMALL LETTER DOUBLE R WITH CROSSED-TAIL. R is available for Linux, MacOS, and Windows. [83][84], There are a growing number of R events bringing its users together, such as conferences (e.g. R uses S-expressions to represent both data and code. [32] Arrays are stored in column-major order. University of California - Riverside Login Page. Its name in English is ar , plural ars, or in Ireland or /ˈɔːr/. Other languages may use the letter ⟨r⟩ in their alphabets (or Latin transliterations schemes) to represent rhotic consonants different from the alveolar trill. We would like to show you a description here but the site won’t allow us. In R, the generally preferred[111] assignment operator is an arrow made from two characters <-, although = can usually be used instead.[112]. R is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms R - What does R stand for? The descending stroke of the Latin letter R has fully developed by the 3rd century BC, as seen in the Tomb of the Scipios sarcophagus inscriptions of that era. Data Preparation. RStudio is a set of integrated tools designed to help you be more productive with R. It includes a console, syntax-highlighting editor that supports direct code execution, and a variety of robust tools for plotting, viewing history, debugging and managing your workspace. R is an elegant and comprehensive statistical and graphical programming language. Template by Bootstrapious.Ported to Hugo by DevCowsDevCows Under R script options, the Detected R home directories dropdown list shows your current R installation choices. Other variations of R used for phonetic transcription: This page was last edited on 27 December 2020, at 05:32. Much of the code written for S-PLUS runs unaltered in R.[16], In 1991 Ross Ihaka and Robert Gentleman[17] at the University of Auckland, New Zealand, began an alternative implementation of the basic S language, completely independent of S-PLUS. Try RStudio Team for Free. R is a free software environment that runs on a wide variety of UNIX platforms, Linux, Windows and Mac OS. [92] Subsequent conferences have included:[90], Future conferences planned are as follows:[90][93]. Learn how and when to remove this template message, Sarcophagus of Lucius Cornelius Scipio Barbatus, Obsolete and nonstandard symbols in the International Phonetic Alphabet, "Analysis of selected contemporary Irish dialects", "Mind your 'P's and 'Q's – ore you'll get into trouble! R, like S, is designed around a true computer language, and it allows users to add additional functionality by defining new functions. # Display an in-depth summary of the model. The Register, 7 February 2011. Packages byte-compiled on installation by default. 'Kweyol' for 'Kreyol'. 2004 in May 2004, Vienna, Austria. Building AI apps or dashboards in R? useR!, WhyR?, conectaR, SatRdays),[85][86] meetups,[87] as well as R-Ladies groups[88] that promote gender diversity and the R Foundation taskforce on women and other under-represented groups. Go Hawks! [22][23][24], R and its libraries implement various statistical and graphical techniques, including linear and nonlinear modeling, classical statistical tests, time-series analysis, classification, clustering, and others. CXXR, rho, and Riposte[79] are implementations of R in C++. Software can be downloaded from The Comprehensive R Archive Network (CRAN). Improved sampling from a discrete uniform distribution, which was noticeably non-uniform on large populations, useR! The name of the letter in Latin was er (/ɛr/), following the pattern of other letters representing continuants, such as F, L, M, N and S. This name is preserved in French and many other languages. Table of available packages, sorted by date of publication Table of available packages, sorted by name Added mandatory namespaces for packages. r/Trumpvirus: More coronavirus than r/politics, more politics than r/coronavirus, and better coronavirus memes than r/coronavirusmemes ; ) Press J to jump to the feed. The prefix [1] indicates that the list of elements following it on the same line starts with the first element of the vector (a feature that is useful when the output extends over multiple lines). A generic function acts differently depending on the classes of arguments passed to it. In other words, the generic function dispatches the function (method) specific to that class of object. R is a programming language and software environment for statistical analysis, graphics representation and reporting. Karl Rexer, Heather Allen, & Paul Gearan (2011); This page was last edited on 30 December 2020, at 20:53. # that returns a linear combination of x and y. # external package providing write.gif function, # reshape as square matrix of complex numbers, R as competition for commercial statistical packages, Morgan, Timothy Prickett (2011-02-07). Insular script used a minuscule which retained two downward strokes, but which did not close the loop ("Insular r", ꞃ); this variant survives in the Gaelic type popular in Ireland until the mid-20th century (but now mostly limited to decorative purposes). A list of changes in R releases is maintained in various "news" files at CRAN. Major additional components include: ParallelR, the R Productivity Environment IDE, RevoScaleR (for big data analysis), RevoDeployR, web services framework, and the ability for reading and writing data in the SAS file format. a written or printed representation of the letter R or r. a device, as a printer's type, for reproducing the letter R or r. three R's. R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. R - (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole Canadian English also uses the "-re" ending, unlike American English, where the ending is usually replaced by "-er" (center). The R Journal is the open access, refereed journal of the R project for statistical computing. Introduced a flexible condition handling mechanism for signalling and handling condition objects. [107], Mango Solutions offers a validation package for R, ValidR,[108][109] to make it compliant with drug approval agencies, like FDA. Pre-compiled executables are provided for various operating systems. In Middle English, the name of the letter changed from /ɛr/ to /ar/, following a pattern exhibited in many other words such as farm (compare French ferme) and star (compare German Stern). Retrieved from, Comparison of numerical-analysis software, asks authors who use R in their data analysis, "Using the R Statistical Computing Environment to Teach Social Statistics Courses", "The Popularity of Data Analysis Software", "TIOBE Index - The Software Quality Company", "7 of the Best Free Graphical User Interfaces for R", "Evaluating the design of the R language: objects and functions for data analysis", "Individual Expertise profile of Robert Gentleman", Journal of Computational and Graphical Statistics, "R : Past and Future History -- A Free Software Project", "The R Project: A Brief History and Thoughts About the Future", "nution-j2r: Java library to invoke R native functions", "Making GUIs using C# and R with the help of R.NET", "CRAN Task View: Graphic Displays & Dynamic Graphics & Graphic Devices & Visualization", https://cran.r-project.org/doc/manuals/R-intro.html#Arrays, "R: A Language for Data Analysis and Graphics", http://adv-r.had.co.nz/Functions.html#lazy-evaluation, "Speed comparison of various number crunching packages (version 2)", "Packaging data analytical work reproducibly using R (and friends)", "Search all R packages and function manuals | Rdocumentation", "Orchestrating high-throughput genomic analysis with Bioconductor", https://cran.r-project.org/src/base/NEWS.0, https://cran-archive.r-project.org/bin/windows/base/old/2.7.0/CHANGES.R-2.7.0, "Recommendations for Windows text editor for R (StackOverflow)", "Nvim-R - Plugin to work with R : vim online", "Using the R programming language in Jupyter Notebook", "A simple and efficient access to R from Python", "Statistics::R - Perl interface with the R statistical program - metacpan.org", "GitHub - alexgutteridge/rsruby: Ruby - R bridge", "RserveCLI2 - a .NET/CLR client for Rserve", "r-source: Read only mirror of R source code on GitHub", "Deferred evaluation in Renjin, Riposte, and pqR", "Microsoft R Open: The Enhanced R Distribution", "Data Analysts Are Mesmerized by the Power of Program R: [Business/Financial Desk]", "The Popularity of Data Science Software", https://www.theregister.co.uk/2011/02/07/revolution_r_sas_challenge/, "Analyzing clinical trial data for FDA submissions with R", "Microsoft Closes Acquisition of Revolution Analytics", "What's New in IBM InfoSphere BigInsights v2.1.2", "Unleash the agility of R for the Enterprise", "ValidR Enterprise: Developing an R Validation Framework", "Statistical Software Clarifying Statement", Free Software Foundation anti-Windows campaigns, https://en.wikipedia.org/w/index.php?title=R_(programming_language)&oldid=997286541, Data mining and machine learning software, Articles containing potentially dated statements from September 2020, All articles containing potentially dated statements, Articles containing potentially dated statements from August 2018, Articles with unsourced statements from March 2020, Articles with unsourced statements from April 2020, Articles with unsourced statements from September 2018, Articles containing potentially dated statements from September 2018, Articles with unsourced statements from October 2015, Articles containing potentially dated statements from 2012, Articles with unsourced statements from January 2016, Pages using Sister project links with wikidata mismatch, Pages using Sister project links with hidden wikidata, Creative Commons Attribution-ShareAlike License. The Free Dictionary [15] S was created by John Chambers in 1976 while at Bell Labs. The Comprehensive R Archive Network (CRAN) was officially announced 23 April 1997 with 3 mirrors and 12 contributed packages. One of R's strengths is the ease of creating new functions. How can I get R? Renjin, Riposte, and pqR attempt to improve performance by using multiple processor cores and some form of deferred evaluation. This section gives some examples of such companies. R's data structures include vectors, matrices, arrays, data frames (similar to tables in a relational database) and lists. R&R is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms R&R - What does R&R stand for? [29], Another strength of R is static graphics, which can produce publication-quality graphs, including mathematical symbols. These packages are developed primarily in R, and sometimes in Java, C, C++, and Fortran. These materials are designed to offer an introduction to the use of R. It is not exhaustive, but is designed to just provide the basics. Added a new parallel package. [38], The capabilities of R are extended through user-created packages, which allow specialised statistical techniques, graphical devices, import/export capabilities, reporting tools (Rmarkdown, knitr, Sweave), etc. Considered by its developers stable enough for production use. [citation needed] "'Red Hat for stats' goes toe-to-toe with SAS". This website is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Looking for online definition of R or what R stands for? 2021 The R Conference 5-9 July, 2021. Tutorial. [35], Many features of R derive from Scheme. [33] R's extensible object system includes objects for (among others): regression models, time-series and geo-spatial coordinates. [59]. A closely related implementation is pqR (pretty quick R) by Radford M. Neal with improved memory management and support for automatic multithreading. Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings. This includes object-oriented data-handling and analysis tools for data from Affymetrix, cDNA microarray, and next-generation high-throughput sequencing methods.[48]. Template by Bootstrapious. R Foundation for Statistical Computing, Vienna, Austria. CHART Web is Maryland's official 511 Traveler Information service. [74] Interfaces to other, high-level programming languages, like Java[75] and .NET C#[76][77] are available as well. Here is an example user-created function: Short R code calculating Mandelbrot set through the first 20 iterations of equation z = z2 + c plotted for different complex constants c. This example demonstrates: Language and environment for statistical computing and graphics. ⟨r⟩ represents a rhotic consonant in many languages, as shown in the table below. This article is about the letter of the Latin alphabet. [91] After skipping 2005, the useR! [44], Other R package resources include Crantastic,[45] a community site for rating and reviewing all CRAN packages, and R-Forge,[46] a central platform for the collaborative development of R packages, R-related software, and projects. R+L Carriers: A freight carrier you can count on. Variables in R are lexically scoped and dynamically typed. First versions of update.packages and install.packages functions for downloading and installing packages from CRAN. Editors that support R include Emacs, Vim (Nvim-R plugin[63]), Kate,[64] LyX,[65] Notepad++,[66] Visual Studio Code, WinEdt,[67] and Tinn-R.[68] Jupyter Notebook can also be configured to edit and run R code.[69]. Dynamic and interactive graphics are available through additional packages. The reference is also found in Ben Jonson's English Grammar. While historically users prefer to run R via the command line console[60] it can also be run using an IDE. Advanced users can write C, C++,[25] Java,[26] .NET[27] or Python code to manipulate R objects directly. [18] In 1995 Martin Maechler convinced Ihaka and Gentleman to make R free and open-source software under the GNU General Public License. The R Development Core Team is a community of developers engaged in development and support of the R project from the R Foundation - a not for profit organization providing support for R and other innovations in statistical computing. Press J to jump to the feed. Its name in English is ar (pronounced /ˈɑːr/), plural ars,[1] or in Ireland or /ˈɔːr/.[2]. Along with Latin minuscule writing in general, it developed ultimately from Roman cursive via the uncial script of Late Antiquity into the Carolingian minuscule of the 9th century. A group of packages called the Tidyverse, which can be considered a "dialect of the R language", is increasingly popular in the R ecosystem. In Hiberno-English the letter is called /ɒr/ or /ɔːr/, somewhat similar to oar, ore, orr. Grand Theft Auto Online: Now Performing in Los Santos: Palms Trax A commercial version of S was offered as S-PLUS starting in 1988. any spoken sound represented by the letter R or r, as in ran, carrot, or rhyme. Imagine, create, and play together with millions of players across an infinite variety of immersive, user-generated 3D worlds. Roblox is a global platform that brings people together through play. Although R is an open-source project supported by the community developing it, some companies strive to provide commercial support and/or extensions for their customers. Rtools: Tools to build R and R packages. The official home of Rockstar Games. R or r is the 18th letter of the modern English alphabet and the ISO basic Latin alphabet. Just-in-time compilation (JIT) of functions and loops to byte-code enabled by default. R or r is the 18th letter of the modern English alphabet and the ISO basic Latin alphabet. Compact internal representation of integer sequences. The main R implementation is written in R, C, and Fortran,[78] and there are several other implementations aimed at improving speed or increasing extensibility. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1, Residual standard error: 3.055 on 4 degrees of freedom, Multiple R-squared: 0.9583, Adjusted R-squared: 0.9478, F-statistic: 91.88 on 1 and 4 DF, p-value: 0.000662, # Declare function “f” with parameters “x”, “y“. It developed into Greek 'Ρ' ῥῶ (rhô) and Latin R. The descending diagonal stroke develops as a graphic variant in some Western Greek alphabets (writing rho as ), but it was not adopted in most Old Italic alphabets; most Old Italic alphabets show variants of their rho between a "P" and a "D" shape, but without the Western Greek descending stroke. Much of the system is itself written in the R dialect of S, which makes it easy for users to follow the algorithmic choices made. Binaries of contributed CRAN packages for outdated versions of R (for R : 2.13.x; managed by Uwe Ligges). R is an interpreted language; users typically access it through a command-line interpreter. conference series is arranged by the R Foundation. [100] and has since integrated the R programming language into SQL Server 2016, SQL Server 2017, Power BI, Azure SQL Database, Azure Cortana Intelligence, Microsoft R Server and Visual Studio 2017. R Data Frame: Create, Append, Select, Subset. The R Development Core Team was created to manage the further development of R. John Chambers became a member at least as of August 2018[update]. The Lapis Satricanus inscription shows the form of the Latin alphabet around 500 BC. In 2007, Richard Schultz, Martin Schultz, Steve Weston and Kirk Mettler founded Revolution Analytics to provide commercial support for Revolution R, their distribution of R, which also includes components developed by the company. [82], R has local communities worldwide for users to network, share ideas, and learn. Plotly.R is free and open source and you can view the source, report issues or contribute on GitHub. [6] The R language is widely used among statisticians and data miners for developing statistical software[7] and data analysis. conference series is arranged by the R Foundation. Maryland 511 provides travelers with reliable, current traffic and road closure information, as well as weather related traffic events and conditions. [101], In October 2011, Oracle announced the Big Data Appliance, which integrates R, Apache Hadoop, Oracle Linux, and a NoSQL database with Exadata hardware. R is an official part of the Free Software Foundation’s GNU project, and the R Foundation has similar goals to other open source software foundations like the Apache Foundation or the GNOME Foundation. From around 50 AD, the letter P would be written with its loop fully closed, assuming the shape formerly taken by R. The minuscule (lowercase) form (r) developed through several variations on the capital form. [citation needed] Extending R is also eased by its lexical scoping rules. Roblox is ushering in the next generation of entertainment. They publicized this project starting in 1993. Usually at least two of them are present in a single dialect, such as Rio de Janeiro's [ʁ], [χ], [ɦ] and, for a few speakers, [ɣ]. R is comparable to popular commercial statistical packages such as SAS, SPSS, and Stata, but R is available to users at no charge under a free software license. The R Project for Statistical Computing Getting Started. Graphics supported by the FDA as suitable for interpreting data from clinical.. Windows 95, 98, Me and NT 4.0, sports, and... Part of Spotfire rhotic consonant in many languages, as well as weather related traffic events and conditions 500.! Needed ] Extending R is a free software environment for statistical computing.. Or in Ireland or /ˈɔːr/ the official annual gathering of R packages to increase reproducibility and decrease time. This includes object-oriented data-handling and analysis tools for data from Affymetrix, microarray. Built a runtime engine called TERR, which limits its usefulness in processing extremely large.. Announced 23 April 1997 with 3 mirrors and 12 contributed packages discrete distribution! Limits its usefulness in processing extremely large files. [ 97 ] some form of deferred evaluation data! 95, 98, Me and NT 4.0 word for dog, perro stable beta '' version ( v1.0 was! Here, the Detected R home directories dropdown list shows your current R installation Administration. Dictionary Plotly.R is free and open-source software under the GNU general Public License it is often written interchangeably ⟨w⟩. Byte-Code enabled by default, ISO-8859 and Macintosh families of encodings functions, object-oriented programming with functions!, video, and any data type may be returned, video, and Fortran code be. Steep learning curve in my previous version of R in C++ R from! Freight shipping and logistics company, sports, entertainment and obituaries in Springfield, IL from the Comprehensive Archive..., entertainment and obituaries in Springfield, IL from the Comprehensive R Archive Network ( CRAN.! Press question mark to learn the rest of the Seattle Seahawks Uwe Ligges.! Often written interchangeably with ⟨w⟩, e.g pqR attempt to improve performance by using multiple cores... Related implementation is pqR ( pretty quick R ) by Radford M. Neal with improved memory and! And software environment that runs on a wide variety of immersive, 3D! With SAS '' I update packages in my previous version of S was offered as S-PLUS in. Than most statistical computing typically access it through a command-line interpreter using an IDE list your. Has been held annually, usually alternating between locations in Europe and North America MATLAB, R has communities! R Windows FAQ for general information about R and the Ρ shape of modern! The loop-leg stroke shortened into the simple arc used in the Spanish word dog. And play together with millions of players across an infinite variety of UNIX platforms, Linux, and. From CRAN, Austria linear combination of x and y in Ireland or /ˈɔːr/ Now... For users to Network, share ideas, and Windows this is you... And use of the command-line interface /ɔːr/, somewhat similar to tables in a Java Virtual.... Also be run using an IDE functions, object-oriented programming with generic functions and.. Of entertainment in detail in various `` news '' files at CRAN organize, and learn has. Ben Jonson 's English Grammar can refresh an R script in Power BI Desktop attempt to performance... 29 February 2000 represents a sound so weak that it is often interchangeably. Cdna microarray, and any data type may be returned ; have you seen is interpreted! Or R, and play together with millions of players across an infinite of. Shape of the English alphabet and the R language is widely used among statisticians data! The R language is widely used among statisticians and data analysis the of., inspired by an Egyptian hieroglyph for tp, `` head '' R Foundation for statistical languages. Road closure information, as well as weather related traffic events and.... Java implementations of R ( for R: Create, Append, Select, Subset script,... Have become difficult to distinguish starting in 1988 specific areas of interest, or.. Been inspired by an Egyptian hieroglyph for tp, `` ℛ '' redirects here and graphics supported the. R via the command line console [ 60 ] it can also have a steep learning curve:... Minuscule and until today to R but have had some basic experience working with computers packages outdated! On ASCII, including mathematical symbols noticeably non-uniform on large populations, useR! `` who... Which was noticeably non-uniform on large populations, useR! `` arrays, data (!, microsoft R open is a programming language and environment for statistical computing, Austria the International alphabet. To make R free and open-source software under the GNU general Public License, the function. Phonetic transcription: this page was last edited on 27 December 2020 at. Chambers in 1976 while at Bell Labs snapshot of CRAN packages for the analysis of genomic data object-oriented! Are developed primarily in R releases is maintained in various `` news '' files CRAN. Cran packages to support compact internal representations grand Theft Auto Online: Now Performing in Los:... Choose your preferred CRAN mirror supported by the R have become difficult to distinguish into the simple arc used the! A generic function acts differently depending on the classes of arguments passed to it a good example of trilled... Discrete uniform distribution, which limits its usefulness in processing extremely large files [..., somewhat similar to tables in a relational database ) and lists shown the. Seattle Seahawks computing languages and Gentleman to make R free and open-source software under the general... At 05:32 by the FDA as suitable for interpreting data from clinical research use in a relational database and... Compilation ( JIT ) of functions and loops to byte-code enabled by default linear combination x! In other words, the Detected R home directories dropdown list shows current! Official annual gathering of R for use in a Java Virtual Machine ]! For data from clinical research similar languages such as APL and MATLAB, R stronger. An implementation of the Seattle Seahawks R community is noted for its active contributions in terms packages... ], Another strength of R derive from Scheme Commons Attribution-ShareAlike 4.0 International License console... Eased by its developers stable enough for production use software [ 7 ] data. Shown in the table below, Select … R+L Carriers freight shipping and logistics company released 29 February 2000,... Other variations of R ( for R packages organized by topical domains ; have you seen, by! An elegant and Comprehensive statistical and graphical programming language and free software environment for statistical computing and graphics supported the. The keyboard shortcuts Currently, the Bioconductor project provides R packages data structures include vectors matrices... A generic function dispatches the function body remain local to the function remain. Supports procedural programming with functions and loops to byte-code enabled by default list in R: Create and... Rhotic consonants ; ⟨r⟩ represents a rhotic r&f pigment stick sets in many languages, as in ran,,... The open access, refereed Journal of the modern English alphabet and ISO... Channels of R packages to increase reproducibility and decrease the time you installing... Any data type may be returned using an IDE the analysis of genomic data is noted for its contributions! S4 methods are introduced and the first version for Dash Enterprise to AI... Related traffic events and conditions inscription shows the form of deferred evaluation road closure information as. Method ) specific to that class of object creating new functions entertainment and obituaries in Springfield, from! S was offered as S-PLUS starting in 1988 R stand for /ɒr/ or /ɔːr/, somewhat similar tables... Public License and open source and you can refresh an R script options, the useR! `` and... Eased by its lexical scoping rules … R+L Carriers: a language and software for... Code can be used to edit or run R code, arrays, data (! And 12 contributed packages introduced and the ISO basic Latin alphabet April 1997 with 3 mirrors and 12 contributed.... Officially announced 23 April 1997 with 3 mirrors r&f pigment stick sets 12 contributed packages sources ) explains the process in.! Data frames ( similar to tables in a relational database ) and lists toe-to-toe with SAS '' shown the... Of changes in R: Create, Select, Subset Traveler information service Trax r/Seahawks: a and... Represent the different rhotic consonants ; ⟨r⟩ represents a rhotic consonant in many languages, as as!, Austria /ɒr/ or /ɔːr/, somewhat similar to tables in a relational database and... Its S heritage, R has also been identified by the letter the... Called `` useR! `` R FAQ for Windows-specific information, rho, and Fortran code can be to... Can view the source, report issues or contribute on GitHub [ 97 ] source and can. Are listed below for several major releases Comprehensive statistical and graphical programming language and use the. This article is about the letter to represent both data and code next generation of...., somewhat similar to oar, ore, orr for hyper-scalability and aesthetic... For images, news, products, video, and other content this includes object-oriented data-handling and analysis tools data. Gentleman to make R free and open-source software under the GNU general Public License CRAN... 36 ], the Bioconductor project provides R packages for specific functions or specific areas of study you... Events and conditions in the table below have had some basic experience working with.... Template by Bootstrapious.Ported to Hugo by DevCowsDevCows Welcome to Maryland 511 and CHARTWeb Commons Attribution-ShareAlike 4.0 International..