2025年2月28日 · CRAN is a network of ftp and web servers around the world that store identical, up-to-date, versions of code and documentation for R. Please use the CRAN mirror nearest to you to minimize network load. To “submit” a package to CRAN, check that your submission meets the CRAN Repository Policy and then use the web form.

Download R-4.4.3 for Windows. The R-project for statistical computing. This build requires UCRT, which is part of Windows since Windows 10 and Windows Server 2016. On older systems, UCRT has to be installed manually from here.

CRAN (Comprehensive R Archive Network) 是 R 语言的官方仓库，几乎所有主流的 R 包都可以通过 CRAN 安装。 镜像设置 建议使用CRAN安装R包前，将镜像设置为离您较近的镜像点，这里推荐清华大学提供的CRAN镜像，选择后，保存即可。

Finds the k nearest neighbours for every point in a given dataset in O (N log N) time using Arya and Mount's ANN library (v1.1.3). There is support for approximate as well as exact searches, fixed radius searches and 'bd' as well as 'kd' trees. The distance is computed using the L2 (Euclidean) metric.

2024年8月25日 · Finds the k nearest neighbours for every point in a given dataset in O (N log N) time using Arya and Mount's ANN library (v1.1.3). There is support for approximate as well as exact searches, fixed radius searches and bd as well as kd trees. This package implements nearest neighbors for the Euclidean (L2) metric.

2017年12月11日 · R-CRAN（Comprehensive R Archive Network）是R语言的重要组成部分，提供了数以千计的扩展包，用于支持各种特定领域的计算需求。其中，“geoconv”这个开源软件包便是针对地理坐标转换的专业工具，它为R用户提供了...

This is the Sage Bionetworks R Archive Network (RAN) - a CRAN-like repository for R packages published by Sage Bionetworks. Packages in this RAN can be installed or upgraded using the standard install.packages() command by adding this RAN to the repository list, e.g.:

2021年4月8日 · 定义：设r为x到y的关系，s为从y到z的关系，则r s称为r和s的复合关系. eg.r={<1,2>,< 3,4>,<2,2>},s={<4,2>,<2,5>,< 3,1>,<1,3>} 解：r s={<1,5>,< 3,2>,<2,5>} s r={<4,2>,< 3,2>,<1,4>}≠r s (r s) r={< 3,2>} r (s r)={< 3,2>} r r={<1,2>,<2,2>} s s={<4,5>,< 3,3>,<1,1>} r r r={<1,2>,<2,2>}

2024年2月29日 · CRAN 是一个遍布全球的 FTP 和 Web 服务器网络，存储着 R 代码和文档的相同、最新版本。 请使用离您最近的 CRAN 镜像，以最大程度地减少网络负载。 要将软件包“提交”到 CRAN，请检查您的提交是否符合 CRAN 存储库策略，然后使用 网页表单。 如果失败，请按照策略发送电子邮件至 [email protected]。 请勿将提交内容附加到电子邮件中，因为这会使六个人的邮箱塞满。 请注意，出于安全原因，我们通常不接受预编译二进制文件的提 …

Finds the k nearest neighbours for every point in a given dataset in O (N log N) time using Arya and Mount's ANN library (v1.1.3). There is support for approximate as well as exact searches, fixed radius searches and bd as well as kd trees. This package implements nearest neighbors for the Euclidean (L2) metric.