On 02-05-2012, at 22:00, Alex Roth 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$dt) isn't working. Do you know what > the problem is? If you could respond soon, that would be greatly > appreciated!
Have a look at the help for strsplit. You seem to have the arguments of strsplit the wrong way around. strsplit(z$dt, " ") Berend ______________________________________________ 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.