Some time ago, I posted a note about what I considered to be a bug in axis.POSIXt() for R 2.8.x, relating to whether timezones in the data are obeyed on the axes. A link to that note, and to a quick and helpful response, is at the following URL
http://www.nabble.com/patch-for-axis.POSIXct-%28related-to-timezones%29-td22338700.html#a22338700 Note that R 2.9.0 has been adjusted to help with this. However, there are still problems. Test code is given below: # test code (top panel, OK; bottom panel, incorrect times on x axis) par(mar=c(2,2,2,1)) par(mfrow=c(2,1)) start <- as.POSIXct("2008-05-01 00:00:00", tz="UTC") end <- as.POSIXct("2008-05-01 00:10:00", tz="UTC") plot(c(start, end), c(0, 1), ylab="") mtext(paste(start, "to", end), side=3) start <- as.POSIXct("2008-05-01 00:00:00", tz="UTC") end <- as.POSIXct("2008-05-01 01:10:00", tz="UTC") plot(c(start, end), c(0, 1), ylab="") mtext(paste(start, "to", end), side=3) -- View this message in context: http://www.nabble.com/inconsistent-results-for-axis.POSIXct-tp23492108p23492108.html Sent from the R help mailing list archive at Nabble.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.
