对 R 中的两个列表进行 Regmatches
Regmatches over two lists in R
我在 word.library
的帮助下用以下代码找出了 targetframe
中的近似 machtes 的位置:
tragetframe <- data.frame(words= c("Important Words",
"I would also Importante worde of thes substring",
"No mention of this crazy sayingsys"))
word.library <- data.frame(mainword = c("important word",
"crazy sayings"),
keyID =c("2000", "3000"))
##find position
find <- function(word.library, tragetframe) {
aregexec(word.library, tragetframe, max.distance = 0.1)
}
positions <- lapply(word.library[,1], find, tragetframe[,1])
之后我想提取匹配的子串,但它不起作用:
extract <- function(tragetframe, positions ) {
regmatches(tragetframe, positions)
}
extracted_machtes <- lapply(tragetframe[,1], extract, positions)
希望有人能帮我找到解决办法。
mapply(regmatches, tragetframe, positions)
words <NA>
[1,] "Important Word" Character,0
[2,] "Importante word" Character,0
[3,] Character,0 "crazy sayings"
?mapply
运行用其他对象的第一个元素输入的函数,然后是每个对象的第二个,依此类推。
我在 word.library
的帮助下用以下代码找出了 targetframe
中的近似 machtes 的位置:
tragetframe <- data.frame(words= c("Important Words",
"I would also Importante worde of thes substring",
"No mention of this crazy sayingsys"))
word.library <- data.frame(mainword = c("important word",
"crazy sayings"),
keyID =c("2000", "3000"))
##find position
find <- function(word.library, tragetframe) {
aregexec(word.library, tragetframe, max.distance = 0.1)
}
positions <- lapply(word.library[,1], find, tragetframe[,1])
之后我想提取匹配的子串,但它不起作用:
extract <- function(tragetframe, positions ) {
regmatches(tragetframe, positions)
}
extracted_machtes <- lapply(tragetframe[,1], extract, positions)
希望有人能帮我找到解决办法。
mapply(regmatches, tragetframe, positions)
words <NA>
[1,] "Important Word" Character,0
[2,] "Importante word" Character,0
[3,] Character,0 "crazy sayings"
?mapply
运行用其他对象的第一个元素输入的函数,然后是每个对象的第二个,依此类推。