robert.mcgehee at geodecapital.com
2008-Aug-07 09:32 UTC
[Rd] sapply(Date, is.numeric) (PR#12008)
Full_Name: Robert McGehee Version: 2.7.1 OS: Windows Submission from: (NULL) (192.223.226.6) R-developers, The results below seem inconsistent. From the documentation for is.numeric, I expect FALSE in both cases.> x <- data.frame(dt=Sys.Date()) > is.numeric(x$dt)[1] FALSE> sapply(x, is.numeric)dt TRUE ## Yet, sapply seems aware of the Date class> sapply(x, class)dt "Date" Thanks, Robert PS. Sorry if this sent twice. I originally sent this on Monday to R-bugs at biostat.ku.dk, but it didn't seem to go through. Perhaps it's a deprecated email address (?).
For the record: this is now fixed. On Thu, 7 Aug 2008, robert.mcgehee at geodecapital.com wrote:> Full_Name: Robert McGehee > Version: 2.7.1 > OS: Windows > Submission from: (NULL) (192.223.226.6) > > > R-developers, > The results below seem inconsistent. From the documentation for is.numeric, I > expect FALSE in both cases. > >> x <- data.frame(dt=Sys.Date()) >> is.numeric(x$dt) > [1] FALSE >> sapply(x, is.numeric) > dt > TRUE > > ## Yet, sapply seems aware of the Date class >> sapply(x, class) > dt > "Date" > > Thanks, > Robert > > PS. Sorry if this sent twice. I originally sent this on Monday to > R-bugs at biostat.ku.dk, but it didn't seem to go through. Perhaps it's a > deprecated email address (?). > > ______________________________________________ > R-devel at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel >-- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595