Full_Name: Tom Wainwright
Version: 2.2.1 (2005-12-20 r36812)
OS: Linux (SuSE 9.3)
Submission from: (NULL) (161.55.180.38)
The as.Date function returns erroneous result for certain values using a
day-of-year format. First an example that works (last day of 1970):
> as.Date("1970.365", format="%Y.%j")
[1] "1970-12-31"
Next, a bad example (oops, 1970 wasn't a leap year). Incrementing day by one
moves
date ahead by 2 years 1 month:
> as.Date("1970.366", format="%Y.%j")
[1] "1972-01-31"
> as.Date("1970.366", format="%Y.%j") - as.Date("1970.365", format="%Y.%j")
Time difference of 396 days
The second example should probably return an NA as this is an invalid date.
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