dplyr::select one column and output as vector [duplicate]
Solution 1:
The best way to do it (IMO):
library(dplyr)
df <- data_frame(x = 1:10, y = LETTERS[1:10])
df %>%
filter(x > 5) %>%
.$y
In dplyr 0.7.0, you can now use pull():
df %>% filter(x > 5) %>% pull(y)
Solution 2:
Something like this?
> res <- df %>% filter(x>5) %>% select(y) %>% sapply(as.character) %>% as.vector
> res
[1] "F" "G" "H" "I" "J"
> class(res)
[1] "character"
Solution 3:
You could also try
res <- df %>%
filter(x>5) %>%
select(y) %>%
as.matrix() %>%
c()
#[1] "F" "G" "H" "I" "J"
class(res)
#[1] "character"