r語言簡介

R is a language and environment for statistical computing and graphics that is supported by the R Foundation for Statistical Computing. It is a GNU project which is similar to the S language and environment developed at Bell Laboratories by John Chambers. The S code can run unaltered in R but R is a different implementation of S.

R是R統計計算基金會支持的用于統計計算和圖形的語言和環境。 這是一個GNU項目，類似于John Chambers在貝爾實驗室開發的S語言和環境。 S代碼可以在R中不變地運行，但是R是S的不同實現。

R has provided a wide variety of statistical and graphical techniques. It is also highly extensible. R provides an Open Source route to participation for research in statistical methodology. Statisticians and data miners widely use the R language for developing statistical software.

R提供了各種各樣的統計和圖形技術。 它也是高度可擴展的。 R為統計方法研究的參與提供了一種開放源碼的途徑。 統計人員和數據挖掘者廣泛使用R語言來開發統計軟件。

R's strengths are the ease with which it can produce well-designed publication-quality plots, including mathematical symbols and formulae.

R的優勢在于可以輕松制作出精心設計的具有出版質量的圖表，包括數學符號和公式。

R is available as a free software under the terms of the Free Software Foundation’s GNU. It compiles and runs on a wide variety of UNIX and Linux platforms, Windows and MacOS.

根據自由軟件基金會GNU的條款， R可作為自由軟件獲得。 它可以編譯并在各種UNIX和Linux平臺，Windows和MacOS上運行。

R環境 (The R environment)

R is a great tool for software facilities for data manipulation, calculation, and graphical display. It includes:

R是軟件設施中用于數據處理，計算和圖形顯示的出色工具。 這包括：

Effective data handling and storage facility,

有效的數據處理和存儲設施，

A similar set of operators for calculations on arrays and matrices,

一組類似的運算符，用于計算數組和矩陣，

A large and integrated collection of intermediate tools for data analysis,

大量集成的中間工具，用于數據分析，

Graphical facilities for data analysis and display both on screen and paper, and

用于數據分析和在屏幕和紙上顯示的圖形功能，以及

A simple effective and well-developed programming language that includes conditionals, loops, user defined recursive functions and input and output facilities.

一種簡單有效且經過良好開發的編程語言，包括條件，循環，用戶定義的遞歸函數以及輸入和輸出功能。

The term "environment" is used to characterize the language as a fully planned and a system that works together. R is designed around a true computer language, that allows users to add additional functionality by defining new functions. Much of the system is written in the R is similar to the version of S, which makes it easy for users to follow the algorithms. For intensive computational tasks, C, C++ and Fortran code can be linked to the program and called at runtime. Users can also write C code to manipulate R objects directly.

術語“環境”用于將語言描述為經過全面計劃和協同工作的系統。 R是圍繞一種真正的計算機語言設計的，它允許用戶通過定義新功能來添加其他功能。 用R編寫的大部分系統都類似于S的版本，這使用戶可以輕松地遵循算法。 對于密集的計算任務，可以將C，C ++和Fortran代碼鏈接到程序并在運行時調用。 用戶還可以編寫C代碼直接操作R對象。

Many users think of R as a statistics system but it is more of an environment within which statistical techniques are implemented. R has very simple and easy packages. There are about eight packages that come already installed with the R distribution and many more are available through the CRAN mirror of Internet sites covering a very wide range of modern statistics. Also, user defined packages can be created and distributed for public use which also eases the task that can be performed by R.

許多用戶將R視為統計系統，但它更多地是其中實施統計技術的環境。 R有非常簡單的軟件包。 R發行版中已經安裝了大約八個軟件包，并且Internet站點的CRAN鏡像還提供了更多軟件包，這些軟件包涵蓋了非常廣泛的現代統計數據。 同樣，可以創建和分發用戶定義的包以供公共使用，這也簡化了R可以執行的任務。

R has its own documentation format, which is used to supply comprehensive documentation.

R有其自己的文檔格式，該文檔格式用于提供全面的文檔。

翻譯自: https://www.includehelp.com/r/introduction-to-r-language.aspx

r語言簡介

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