整理包说明中的字段 [英] Collate field in package Description

问题描述

我很抱歉，因为我很可能会在编写R包的手册中找到这个答案，但是在阅读和查看其他包的Collat​​e字段时，我无法100％弄清楚该字段的用途.用通俗易懂的语言(我的英语是英语)，软件包描述文件中的整理"字段有什么作用?一个人想放什么?

I apologize as I know that this answer is likely in the manuals for writing an R package but in my reading and looking at other package's Collate fields I can't figure out 100% what this field is for. In plain language (mine is English) what does the Collate field in the Description file of a package do? What would one want to put there?

推荐答案

我认为这是由于时间和情况而产生的，当时R/目录中的文件的来源顺序(相对于词典默认)很重要. .onLoad()函数通常位于名为zzz.R的文件中的类似原因.

I think it comes from a time and situation when the order in which the files in the R/ directory were sourced (as opposed to the lexicographic default) still mattered. A similar reason for why the .onLoad() function is often in a file named zzz.R.

对于它的价值，我的软件包中没有一个使用DESCRIPTION中的"Collat​​e:"字段.

For what it is worth, not one of my packages uses the "Collate:" field in DESCRIPTION.

并且，由于我们喜欢经验方法，因此这里是一台包含所有CRAN来源的计算机上的快速grep:

And as we're fond of empirical measures, here is a quick grep on a machine with all CRAN sources:

$ grep ^Collate */DESCRIPTION | wc -l
292
$ ls -1 */DESCRIPTION | wc -l
3779

所以这是所有包装的7.7％.除非您真的必须，否则我真的不会为此担心.

So that is 7.7% of all packages. I really would not worry about this unless you really must.

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