I performed a unique extraction on my date-time values for extracting unique seconds in my time-series data.
unique_seconds <- unlist(unique(all_secondsDayData))
I have missing values in my output as follows:
(see "2015-12-03 09:51:26")
[1116] "2015-12-03 09:51:24" "2015-12-03 09:51:25" "2015-12-03 09:51:27" "2015-12-03 09:51:28" "2015-12-03 09:51:29"
How do I fill my vector with these missing values? Do not worry about date because it is one day's data. The issue is filling the vector with missing seconds values.
Looks like you just want a regular time sequence by 1 second. You may try using seq.POSIXt:
x <- c("2015-12-03 09:51:24", "2015-12-03 09:51:25", "2015-12-03 09:51:27",
"2015-12-03 09:51:28", "2015-12-03 09:51:29")
x <- strptime(x, "%Y-%m-%d %H:%M:%S")
RANGE <- range(x)
seq.POSIXt(RANGE[1], RANGE[2], by = 1)
#[1] "2015-12-03 09:51:24 GMT" "2015-12-03 09:51:25 GMT"
#[3] "2015-12-03 09:51:26 GMT" "2015-12-03 09:51:27 GMT"
#[5] "2015-12-03 09:51:28 GMT" "2015-12-03 09:51:29 GMT"
You can read ?seq.POSIXt for specification of by. If it is given as a single number, it is interpreted as "second".