如何在加载包之前知道R中特定功能属于哪个包? [英] How to know to which package a particular function belongs to in R prior to package loading?

问题描述

例如，我知道许多流行的功能，例如tbl_df().我通常不记得它属于哪个包，即data.table或dplyr.因此，我必须始终记住并加载一个程序包，除非我已加载正确的程序包，否则我将无法执行?tbl_df.

Example, I know many popular functions, to name one like tbl_df(). I usually do not remember which package it belongs to i.e. data.table or dplyr. So I have to always remember and load a package and I can not do ?tbl_df unless I have loaded the correct package.

在R控制台本身中加载或安装软件包之前，是否有办法知道特定功能属于哪个软件包.

Is there a way to know to which package a particular function belongs to, prior to loading or installing of the package in R console itself.

我们非常感谢您的帮助. 谢谢.

Any help is highly appreciated. Thanks.

推荐答案

受@J_F的启发，他建议?? tbl_df:我正在寻找"arima"，并且有几十个(即使不是几百个)点击数；我用

Inspired by @J_F who suggested ??tbl_df: I was looking for 'arima' and had dozens if not hundreds of hits; I narrowed them down using

help.search('arima', fields=c('name'), ignore.case=FALSE, agrep=FALSE)

(最重要的是，agrep = FALSE关闭模糊匹配)

(most importantly, agrep=FALSE turns off fuzzy matching)

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