Question

我想要第二句话的文字。

text="I need to go to mall today. I want to purchase clothes. Also, I want to buy shoes."

预期结果：

I want to purchase clothes. Also, I want to buy shoes.

Answer 1

strsplit()的可能性：

sapply(strsplit(text, ". ", fixed = TRUE), 
       function(x) paste(x[2:length(x)], collapse = ". "))

[1] "I want to purchase clothes. Also, I want to buy shoes."

Answer 2

我们还可以使用stringr::str_match捕获第一个点之后的所有内容。

stringr::str_match(text, "\\.(.*)")[, 2]
#[1] " I want to purchase clothes. Also, I want to buy shoes."

[, 2]用于获取捕获组。

Answer 3

我们可以将base R与sub一起使用，以匹配非.后跟.的字符和空格（如果有的话），并用空格（{{1} }）

""

，而sub("^[^.]+\\.\\s*", "", text) #[1] "I want to purchase clothes. Also, I want to buy shoes."中的等效选项将为

tidyverse

我想在包含R的包含文本的列中的第一个句号后加上单词

3 个答案: