In some cases, incorrect results are produced by the code below intended to
calculate the number of days between 2 dates. The year in question was a
leap year.
Note the results for 2004-04-04 and 2004-04-05 are the same! They should be
37 and 38 respectively.
as.integer(as.POSIXct(2004-04-02)
The results are actually correct if you consider daylight savings time.
For example, try this and note that the difference is 23 hours, not 24 hours:
as.POSIXct(2004-04-05) - as.POSIXct(2004-04-04)
You can address this by either using Date or chron classes or adding
the tz = GMT argument on
[EMAIL PROTECTED] writes:
In some cases, incorrect results are produced by the code below intended to
calculate the number of days between 2 dates. The year in question was a
leap year.
Note the results for 2004-04-04 and 2004-04-05 are the same! They should be
37 and 38 respectively.
