r - 为什么 str_count 不能处理多个字符串？

Question

我有一个带有这样文本的字符串：

Text <- c("How are you","What is your name","Hi my name is","You ate your cake")

我想要一个输出来计算单词“you”或“your”出现的次数

Text                   NumYou
"How are you"          1
"What is your name"    1
"Hi my name is"        0
"You ate your cake"    2

我尝试使用 str_count 函数，但它缺少“you”和“your”的出现

NumYou = str_count(text,c("you","your"))

为什么 str_count 不能正常工作？

标签： rstringsubstr-count

Answer 1

pattern作为一个字符串传递。

stringr::str_count(tolower(Text),'you|your')
#[1] 1 1 0 2