How to make an empty vector of POSIXct

Question

I want to make an empty vector of POSIXct so that I can put a POSIXct in it:

vec <- vector(\"POSIXct\", 10)
vec
vec[1] <- \"2014-         


        

Answer 1

Perhaps I missed it above, but this is a truly empty POSIXct:

as.POSIXct(integer())

For example, if you want an empty data frame:

empty <- data.frame(date_time = as.POSIXct(integer()),
                    date = as.Date(x = integer(), origin = "1970-01-01"))
empty
[1] date_time date     
<0 rows> (or 0-length row.names)

str(empty)
'data.frame':   0 obs. of  2 variables:
 $ date_time: 'POSIXct' num(0) 
 - attr(*, "tzone")= chr ""
 $ date     : 'Date' num(0)