rstringrqdap

Extract only words containing ASCII characters from vector of strings

I'm stuck with it, so, please, any advice is welcome.

b <- str_extract_all(c('hello ringпрг','trust'), regex("[a-z]+", TRUE))

Returns a list:

    List of 2
 $ : chr [1:2] "hello" "ring"
 $ : chr "trust"

But I want to have a vector with strings of this words for each element of vector c('hello ringпрг','trust') such as "hello ring", "trust". Any other functions and packages are welcome too.

Solution

  • Use sapply with paste as in:

    b<-str_extract_all(c('hello ringпрг','trust'), regex("[a-z]+", TRUE))

sapply(b, paste, collapse = " ")

## [1] "hello ring" "trust"