On Mon, 10 Nov 2008 15:27:52 -0500, "stephen sefick" <[EMAIL PROTECTED]> wrote:
> library(maptools) sunrise.set <- function(lat, long, date, > timezone="UTC", num.days=1){ #this needs to be long lat# lat.long <- > matrix(c(long, lat), nrow=1) day <- as.POSIXct(date, tz=timezone) > sequence <- seq(from=day, length.out=num.days , by="days") sunrise <- > sunriset(lat.long, sequence, direction="sunrise", POSIXct=TRUE) sunset > <- sunriset(lat.long, sequence, direction="sunset", POSIXct=TRUE) ss > <- data.frame(sunrise, sunset) ss <- ss[,-c(1,3)] > colnames(ss)<-c("sunrise", "sunset") return(ss) > } > I believe that he is refering to the code that I wrote above, which > relies heavily on map tools (to say the least). So what's the problem? You specified timezone="UTC" so that's what you're getting. WRT the warnings I do not get them, but the string passed may be wrong or some definitions as missing from his system. Sorry I cannot help with that. -- Seb ______________________________________________ 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.