On Wed, May 9, 2012 at 7:24 PM, Shivam <shivamsi...@gmail.com> wrote: > Ohh ... Thanks Gabor. I have a few related queries then, kindly have a look: > > 1. Does it only hinder the sqldf package or are there other issues with > using POSIXlt in a dataframe? Am asking because I have a few dataframes with > columns of class(POSIXlt ). > > 2. I have columns containing 'date+timestamp', something like '2011-01-03 > 09:07:07' which are of class POSIXlt. I need to perform some arithmetic > operations on these columns. Which class would be most appropriate for such > kind of data? >
Its not just sqldf. You will have other problems too if you put POSIXlt objects in data frames too. See R News 4/1. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.
