在R语言中根据单词序列查找两个字符串之间的匹配

Question

如果 R 语言中的任何函数可用于将两个单词按顺序匹配到另一个字符串（而不是将单个单词匹配到单个单词），请指导我。

Answer 1

我不确定你想要什么结果，但使用lubridate::intersect和splitsplit可能会splitsplit帮助，

df <- data.frame(
  string1 = c("Raj ate food", "Raj is working", "Raj ate food"),
  string2 = c("Raj ate nice food", "Car is driven by Raj", "Raj us not having food")
)

for (i in 1:dim(df)[1]){
  print(lubridate::intersect(strsplit(df$string1, " ")[[i]] , strsplit(df$string2, " ")[[i]]))
}

[1] "Raj"  "ate"  "food"
[1] "Raj" "is" 
[1] "Raj"  "food"