You have to tell R that a column has date/time content. Here is an example:
test<-"3/23/2010 20:55" #this is your format as.POSIXct(test, format="%m/%d/%Y %H:%M") #with the format parameter you tell R how to interpret your data _______________________ Moritz Grenke http://www.360mix.de ______________________________________________ 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.
