Re: [R] strange Sys.Date() side effect

2012-01-13 Thread Czerminski, Ryszard
en, Don [mailto:macque...@llnl.gov] Sent: Thursday, January 12, 2012 5:27 PM To: Czerminski, Ryszard; r-help@r-project.org Subject: Re: [R] strange Sys.Date() side effect My best guess is that you are misunderstanding what the c() function does. I'd suggest reading the help page for c, obta

Re: [R] strange Sys.Date() side effect

2012-01-12 Thread MacQueen, Don
My best guess is that you are misunderstanding what the c() function does. I'd suggest reading the help page for c, obtained by typing ?c Note that if you supply c() with objects of different types (as you have), the results will probably not be what you wanted. Given what c() does, your output

Re: [R] strange Sys.Date() side effect

2012-01-10 Thread Duncan Murdoch
On 12-01-10 8:04 AM, Czerminski, Ryszard wrote: Any ideas what is the problem with this code? N<- 2; c(Sys.Date(), sprintf('N = %d', N)) [1] "2012-01-10" NA Warning message: In as.POSIXlt.Date(x) : NAs introduced by coercion You are trying to create a vector combining a Date object and a ch

[R] strange Sys.Date() side effect

2012-01-10 Thread Czerminski, Ryszard
Any ideas what is the problem with this code? > N <- 2; c(Sys.Date(), sprintf('N = %d', N)) [1] "2012-01-10" NA Warning message: In as.POSIXlt.Date(x) : NAs introduced by coercion Best regards, Ryszard Ryszard Czerminski AstraZeneca Pharmaceuticals LP 35 Gatehouse Drive Waltham, MA 02451 USA 781