Have a look at chartSeries in the quantmod package. It can handle financial style series formatting quite well. Make sure to get the newest version of xts and quantmod from CRAN - as there have been recent updates to the charting facility.
Some documentation can be found at http://www.quantmod.com . A new charting example page is in the works as well. There is also a function in 'xts' called axTicksByTime which may be of use in conjunction with the R function axis(). Jeff ______________________________________________ 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.