在list2中检测list1中是否包含任何字符串(整个字符串或较大字符串的一部分) [英] Detect in list2 if there are any strings (whole or part of bigger string) that is contained in list1

问题描述

我有两个列表:

list1<-list("q","w","e","r","t")
list2<-list("a","a","aq","c","f","g")

我需要一个可以给出TRUE的代码，因为q在list2的第三个单元格中.我需要搜索list2中list1的每个单元格.我的意思是我需要在list2的每个单元格中搜索list1的每个单元格中包含的任何字符串.匹配应该是整体匹配，也应该是部分匹配(如果list1中的字符串是list2中较大字符串的一部分)，在两种情况下，我都需要接收TRUE.

I need a code that will give TRUE because q is in the third cell of list2. I need to search for every cell of list1 in list2. I mean that I need to search every cell of list2 for any strings that are contained in every cell of list1. Matching should be as for the whole match but also for partial (if string from list1 is a part of the bigger string in list2) and in both cases I need to receive TRUE.

推荐答案

any(sapply(list1, grepl, list2))
# [1] TRUE

或等效地

greplv <- Vectorize(grepl, 'pattern')
any(greplv(list1, list2))
# [1] TRUE

这篇关于在list2中检测list1中是否包含任何字符串(整个字符串或较大字符串的一部分)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！