R 中应用函数族的命名/名称 [英] Naming / Names of the apply function family in R

问题描述

我目前正在学习 R.特别是我需要记住 apply 函数系列中的函数(例如 lapply、sapply、mapply 等).我知道 apply-function 系列中的每个函数的作用(尤其是 这个答案 有很大帮助)，但有时会混淆名称.

I'm currently studying R. In particular I need to remember the functions in the apply-function family (e.g. lapply, sapply, mapply, etc.). I know what each function in the apply-function family does (especially this answer helps a lot), but mixes the names up from time to time.

每个应用函数的前缀是否有自然含义(如lapply = 'list'-apply)?

Is there a natural meaning for the prefix of each apply function (like lapply = 'list'-apply)?

推荐答案

是的，您获得了以下 apply r-基本功能:

Yes, you got following apply r-basic functions:

• apply 申请 ;)
• lapply 用于列表或向量(文档)

• vapply 用于特定回报 value (文档)

• apply for apply ;)
• lapply for lists or vectors (documentation)

• vapply for specific return value (documentation)

sapply 简单 (文档)

mapply 用于多个列表或向量参数(文档)

tapply for table(检查旧问题 这里)

tapply for table (check old question here)

rapply 用于递归(文档)

我认为您可以以不同的方式解释某些前缀，例如在评论中将 m 称为多元(评论已删除).我尝试使用文档的措辞，因此更容易被理解.

I think you can interprete some prefix differently, like m was mentioned in the commentary as multivariate (commentary got removed). I tried to use the wording of the documentation, so it's more likely to be understood.

还有 lapply、sapply 和 vapply 位于同一个文档站点中，因为 sapply 和 vapply 是 lapply

Also lapply, sapply and vapply are in the same documentation site, since the sapply and vapply are wrapper for lapply

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