在哪里可以获得R版本2.15.2的“ httr”
[英]Where do I get 'httr' for R version 2.15.2
问题描述
Hi, all. 
大家好。 The 'httr' file that CRAN website provides only works on those Rs with versions higher than 3.0. CRAN网站提供的“ httr”文件仅适用于版本高于3.0的Rs。 I have a R version 2.15.2 . 我有一个R版本2.15.2 。 Where can I get 'httr' for my version of R? 我的R版本在哪里可以获得“ httr”？ Thanks! 谢谢！
May I know what is the correct way to achieve my objective? 我可以知道实现目标的正确方法是什么？
Sincerely, Alicia. 真诚的，艾丽西亚。
1 个解决方案
解决方案1
0 2014-04-22 10:06:07
You can get the old archives of a package from cran. 您可以从cran获取软件包的旧档案。 For httr the archive is at cran.r-project.org/src/contrib/Archive/httr . 对于httr ，存档位于cran.r-project.org/src/contrib/Archive/httr。 For projects on github some developers will have tagged releases. 对于github上的项目，一些开发人员将标记发布。 httr has the following releases https://github.com/hadley/httr/releases . httr具有以下版本https://github.com/hadley/httr/releases 。 You can install a package from github using the install_github function from the devtools package. 您可以使用devtools软件包中的install_github函数从github中安装软件包。
devtools::install_github("hadley/httr", ref = "httr-0.2")
would install the release tagged 'httr-0.2' 将安装标记为“ httr-0.2”的发行版
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