I would like to use POSIX classes to store dates and extract components of
dates. Following the example in Spector ("Data Manipulation in R"), I
create a date
> mydate = as. POSIXlt('2005-4-19 7:01:00')
I then successfully extract the day with the command
> mydate$day
[1] 19
But when I try to extract the month
> mydate$mon
[1] 3
it returns the wrong month. And mydate$year is off by about 2,000 years.
Am I doing something wrong?
Dr. Seth W. Bigelow
Biologist, USDA-FS Pacific Southwest Research Station
1731 Research Park Drive, Davis California
[email protected] / ph. 530 759 1718
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