Delete after the space-CodePudding

I have this dataset I need to delete (Delete and Trash) everything after the name city. How can I do?

dati1<- c("a - Novara Delete", "b - Torino Trash", "c - Milano", "f - Bari")
    
dati2 <-data.frame(do.call(rbind, strsplit(dati1, split = " - ")))

I have tried:

c <- dati2$X2 %>%  mutate(dati2$X2 = sub("\\s [^ ] $", "", dati2$X2))

CodePudding user response：

You can use separate:

tidyr::separate(data.frame(dati1), col = dati1, into = stringr::str_c("col", 1:2), extra = 'drop')

  col1   col2
1    a Novara
2    b Torino
3    c Milano
4    f   Bari

or with base R

data.frame(do.call(rbind, lapply(strsplit(dati1, split = "[^[:alnum:]] "), head, 2)))

CodePudding user response：

An option with read.table from base R

read.table(text = sub("^(\\S  - \\S )\\s .*", "\\1", dati1),
     header = FALSE, sep = "-", strip.white = TRUE)
   V1     V2
1  a Novara
2  b Torino
3  c Milano
4  f   Bari