So someone forgot to specify the timezone, if the current one was not wanted.
However, I don't see how timezones can account for a 24hour difference as originally reported. On Fri, 17 Oct 2003, Don MacQueen wrote: > I do see the described behavior, on three systems, linux R 1.8.0, Mac > OS X R 1.8.0, and Solaris R 1.7.1. > Plot 1 is different than plot 2; in plot 1 the points are offset to > the left of the axis tick marks. > > datet <- as.POSIXct(dates) > > ## 1 > plot(datet,WEIGHT.KG) > > ## 2 > plot(datet,WEIGHT.KG,xaxt='n') > axis.POSIXct(1,at=datet) > > To investigate a bit, I made a copy of axis.POSIXct and modified it > slightly to return the value of "at" that it calculates. I get this: > "2003-10-06 17:00:00 PDT" "2003-10-08 17:00:00 PDT" > "2003-10-10 17:00:00 PDT" "2003-10-12 17:00:00 PDT" > "2003-10-14 17:00:00 PDT" Have you heard of debug()? > These are equal to midnight GMT, since my systems are currently in > PDT, i.e. GMT-7. -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help