Split date into different columns for year, month and day

Question

I have zoo objects that look like:

head(obs)

      Index pp
1932-01-01  0
1932-01-02  0.2
1932-01-03  0

and I want to split the ind

Answer 1

require(lubridate)
maindata1 <- cbind(maindata1, day=day(maindata1$Date), month=month(maindata1$date), year=year(maindata1$date))