Although R has a command line interface, there are several third-party graphical user interfaces, such as RStudio, an integrated development environment, and Jupyter, a notebook interface..  In June 2017 data scientist Robert Muenchen published a more in-depth comparison between R and other software packages, "The Popularity of Data Science Software". For example, R has a generic print function that can print almost every class of object in R with a simple print(objectname) syntax. Added a new serialisation format to support compact internal representations.  After skipping 2005, the useR!  Revolution Analytics also offer a distribution of R designed to comply with established IQ/OQ/PQ criteria which enables clients in the pharmaceutical sector to validate their installation of REvolution R. In 2015, Microsoft Corporation completed the acquisition of Revolution Analytics. , The official annual gathering of R users is called "useR!". The R Journal is the open access, refereed journal of the R project for statistical computing. For computationally intensive tasks, C, C++, and Fortran code can be linked and called at run time. Last version to support Microsoft Windows XP. , R has Rd, its own LaTeX-like documentation format, which is used to supply comprehensive documentation, both online in a number of formats and in hard copy.. noun, plural R's or Rs, r's or rs. One of R's strengths is the ease of creating new functions. R is easily extensible through functions and extensions, and the R community is noted for its active contributions in terms of packages.  The R packaging system is also used by researchers to create compendia to organise research data, code and report files in a systematic way for sharing and public archiving. , Other R package resources include Crantastic, a community site for rating and reviewing all CRAN packages, and R-Forge, a central platform for the collaborative development of R packages, R-related software, and projects. , In January 2009, the New York Times ran an article charting the growth of R, the reasons for its popularity among data scientists and the threat it poses to commercial statistical packages such as SAS. R - (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole Last version to support Windows 95, 98, Me and NT 4.0. R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. , A GNU package, the official R software environment is written primarily in C, Fortran, and R itself (thus, it is partially self-hosting) and is freely available under the GNU General Public License. Many features of R derive from Scheme. Renjin and FastR are Java implementations of R for use in a Java Virtual Machine. © The R Foundation. In R, the generally preferred assignment operator is an arrow made from two characters <-, although = can usually be used instead.. This section gives some examples of such companies. A group of packages called the Tidyverse, which can be considered a "dialect of the R language", is increasingly popular in the R ecosystem.  The first such event was useR! 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