Hard to say.. your example is not reproducible. (Study the Posting Guide mentioned at the end of every message on this list.)
A stab in the dark might be that z$dt is a factor and needs to be converted to character first. Use the str function to study your data. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. Alex Roth <alexsro...@gmail.com> wrote: >Hello there, I was wondering if you could help me with a quick R issue. > >I have a data set where one of the columns has both date and time in >it, e.g. "12/31/11 23:45" in one cell. I want to use R to split this >column into two new columns: date and time. > >One of the problems with splitting here is that when the dates go into >single digits there are no 0's in front of months January-September >(e.g., January is represented by 1 as opposed to 01), so every entry >is a different length. Therefore, splitting by the space is the only >option, I think. > >Here's the coding I've developed thus far: > >z$dt <- z$Date #time and date is all under z$Date >foo <- strsplit(" ", z$dt) #attempted split based on the space > >And then if that were to work, I would proceed use the coding: > >foo2 <- matrix(unlist(foo), ncol = 2, byrow=TRUE) >z$Date <- foo[ ,1] >z$Time <- foo[ ,2] > >However, foo <- strsplit(" ", z$dt) isn't working. Do you know what >the problem is? If you could respond soon, that would be greatly >appreciated! > >Thanks so much! >Alex > >______________________________________________ >R-help@r-project.org mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.