[R] Help with maptools sunriset()

From: stephen sefick <ssefick_at_gmail.com>
Date: Tue, 15 Jul 2008 13:52:27 -0400


library(maptools)
RM215 <- matrix(c(33.5959109, -82.1461363), nrow=1) RM215.sp <- SpatialPoints(RM215, proj4string=CRS("+proj=longlat +datum=WGS84"))
d060101 <- as.POSIXct("2006-01-01")
study_seq <- seq(from=d060101, length.out=761, by="days") up <- sunriset(RM215, study_seq, direction="sunrise", POSIXct.out=TRUE)

#why am i getting NA. I am sure that i am missing something.
#Stephen

-- 
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little or so large that all they really do for us is puff us up and make us
feel like gods. We are mammals, and have not exhausted the annoying little
problems of being mammals.

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Received on Tue 15 Jul 2008 - 18:05:40 GMT

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