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R logo. R packages are extensions to the R statistical programming language.R packages contain code, data, and documentation in a standardised collection format that can be installed by users of R, typically via a centralised software repository such as CRAN (the Comprehensive R Archive Network).
There are generally four classes of software used to support the Six Sigma process improvement protocol: . Analysis tools, which are used to perform statistical or process analysis;
Statgraphics – general statistics package; Statistica – comprehensive statistics package; StatsDirect – statistics package designed for biomedical, public health and general health science uses; StatXact – package for exact nonparametric and parametric statistics; SuperCROSS – comprehensive statistics package with ad-hoc, cross ...
Descriptive statistics Nonparametric statistics Quality control Survival analysis Data processing Base stat. [Note 2] Normality tests [Note 3] CTA [Note 4] Nonparametric comparison, ANOVA: Cluster analysis Discriminant analysis BDP [Note 5] Ext. [Note 6]
He co-authored two books based on S, S Programming and Modern Applied Statistics with S. [3] [4] Since mid-1997 he is a member of the "R Core Team" [6] and from 2000 to 2021 he was one of the most active committers to the R core. [7] The package MASS [8] is one of only fifteen "recommended packages" [9] for R (with June 2024 more than 20,900 [10]).
There are a few reviews of free statistical software. There were two reviews in journals (but not peer reviewed), one by Zhu and Kuljaca [26] and another article by Grant that included mainly a brief review of R. [27] Zhu and Kuljaca outlined some useful characteristics of software, such as ease of use, having a number of statistical procedures and ability to develop new procedures.
The choice of a typical library depends on a range of requirements such as: desired features (e.g. large dimensional linear algebra, parallel computation, partial differential equations), licensing, readability of API, portability or platform/compiler dependence (e.g. Linux, Windows, Visual C++, GCC), performance, ease-of-use, continued support ...
On March 5, 2004, LinuxQuestions.org set up a wiki aimed at building the largest online Linux knowledge base. The software used for this task is MediaWiki. [3] LQ also has a section where one can download CD/DVD ISO images of Linux installation and Live CDs. [4] Other than the download section and forums LQ also has the following sections ...