Re: [R] how to shift a chron timestamp by 6:30 hours

2011-07-28 Thread Gabor Grothendieck
On Thu, Jul 28, 2011 at 9:37 AM, Maciej Hoffman-Wecker wrote: > Dear help list, > > I have a timestamp in as a chron object: > >> (x <- chron(dates = c("12/02/11", "22/11/11"), > +             times = c("07:30:00", "04:00:00"), > +             format = c(dates = "d/m/y", times = "h:m:s"))) > [1] (

Re: [R] how to shift a chron timestamp by 6:30 hours

2011-07-28 Thread David Winsemius
On Jul 28, 2011, at 9:37 AM, Maciej Hoffman-Wecker wrote: Dear help list, I have a timestamp in as a chron object: It would have been courteous to put in: library(chron) (x <- chron(dates = c("12/02/11", "22/11/11"), + times = c("07:30:00", "04:00:00"), + format =

Re: [R] how to shift a chron timestamp by 6:30 hours

2011-07-28 Thread Jeff Newmiller
Create a difftime object and subtract it from your chron vector. --- Jeff Newmiller The . . Go Live... DCN: Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. w

[R] how to shift a chron timestamp by 6:30 hours

2011-07-28 Thread Maciej Hoffman-Wecker
Dear help list, I have a timestamp in as a chron object: > (x <- chron(dates = c("12/02/11", "22/11/11"), + times = c("07:30:00", "04:00:00"), + format = c(dates = "d/m/y", times = "h:m:s"))) [1] (12/02/11 07:30:00) (22/11/11 04:00:00) Now I want to shift the timestamp by