将字符拆分为字母和数字 [英] Split a character to letters and numbers

问题描述

我有一个独特的字符，每个字母后面跟着一个数字.例如:A1B10C5

I have a unique character, each letter follows a number. For instance: A1B10C5

我想将它分成 letter <- c(A, B, C) 和 number <- c(1, 10, 5) 使用R.

I would like to split it into letter <- c(A, B, C) and number <- c(1, 10, 5) using R.

推荐答案

我们可以使用正则表达式来分割字母和数字

We can use regex lookarounds to split between the letters and numbers

v1 <- strsplit(str1, "(?<=[A-Za-z])(?=[0-9])|(?<=[0-9])(?=[A-Za-z])", perl = TRUE)[[1]]
v1[c(TRUE, FALSE)]
#[1] "A" "B" "C"

as.numeric(v1[c(FALSE, TRUE)])
#[1]  1 10  5

数据

str1 <- "A1B10C5"

这篇关于将字符拆分为字母和数字的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！