如何对R中元素包含字母和数字的字符向量进行排序? [英] How to sort a character vector where elements contain letters and numbers in R?

问题描述

我有一个字符数组

cf <- c("V440","V457","V116","V327","V446","V108",
         "V155","V217","V120","V51","V477")

我想按降序对其进行排序，以便获得如下输出:

I would like to sort it in descending order so that I will have an output like this:

V51
V108
V116
V120
V155
V217
V327
V440
V446
V457
V477

我已经尝试过sort.list()这样

cf[sort.list(cf)]

并得到以下答案:

[1] "V108" "V116" "V120" "V155" "V217" "V327" "V440" "V446" "V457" "V477" "V51" 

并尝试了order()并获得了相同的结果.

and also tried order() and got same result.

有人可以帮我吗

推荐答案

这里有很多正确的答案，这是另一种方式，只是为了好玩.

Plenty of right answers here, this is another way, just for fun.

cf[order(nchar(cf), cf)]
# [1] "V51"  "V108" "V116" "V120" "V155" "V217" "V327" "V440" "V446" "V457" "V477"

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