R基函数可根据长度对字符串向量进行排序 [英] R base function to sort vector of strings based on length

问题描述

我想知道R基本程序包中是否已有一个可以对字符串向量进行排序的函数，该函数考虑了每个元素的长度，当然也考虑了字典顺序. 例如，在对某些具有年龄段的向量进行 sort 调用之后，您将拥有:

I was wondering if there is an already made function in R base package that can sort a vector of strings taking into consideration the length of each element and then of course the lexicographical order. For instance after a sort call on some vector holding age groups you would have:

v <- c("00-04", "05-09", "10-14", "100-104", "105-109", "110-114", "15-19", "20-24"..etc)

我想拥有:

v <- c("00-04", "05-09", "10-14", "15-19", "20-24"..etc.. "100-104", "105-109", "110-114")

推荐答案

仅使用order:

v[order(nchar(v), v)]

## [1] "00-04"   "05-09"   "10-14"   "15-19"   "20-24"   "100-104" "105-109" "110-114"

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