search for: a22338700

...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&...

I am finding that axis.POSIXct uses the local timezone for deciding where to put tic marks, even if the data being plotted are in another time zone. The solution is to use attr() to copy from the 'x' (provided as an argument) to the 'z' (used for the 'at' locations). I have pasted my proposed solution in section 1 below (as a diff). Then, in section 2, I'll put some