rulesFinCenter for America's
Hi Joe, thanks for your offer. Help is always welcome! The best way to contribute is to get the latest dev branch of Rmetrics at https://svn.r-project.org/Rmetrics/trunk/ and test the packages you are used to work with. To come back to your remark, there are no real rules for DST because they can be changed by temporal authorities. the best way is to keep updated with one of the latest DST database. Actually, we extract data from the zoneinfo database [http://en.wikipedia.org/wiki/Zoneinfo] and generate DST functions. So, the function are not hard-coded but auto-generated. take care, Y.
Joe W. Byers-2 wrote:
Yohan Chalabi wrote:
We are aware of this problem and it will be fixed in the next release. regards, Y. Joe W. Byers-2 wrote:
Rmetrics, The DST rules for the US changed in 2007 to the 2nd Sunday in March for starting DST and the first Sunday in November for ending DST. A good link to see this for Chicago is http://www.timeanddate.com/worldclock/timezone.html?n=64&syear=2000 I would be glad to help rmetrics update this, just let me know with a reply. Happy Holidays! Joe
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Very good and Thank you. I also offer my assistance if you would like it to test some of rmetrics or help fixing some of the minor bugs that are found. Has an consideration be given to changing the DST calendars to be more like the holidays where the DST is calculated using rules for regions rather than the hard coded date vectors? The current method is simple and efficient for code but looks difficult to maintain. The rules that can be derived from the website above might allow easier maintenance in the future. Take care. Joe Joe
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