jim holtman wrote:
just use timeDate from Rmetrics, there you will find several functions
like ...
# timeLastDayInMonth Computes the last day in a given month and year
# timeFirstDayInMonth Computes the first day in a given month and
year
# timeLastDayInQuarter Computes the last day in a given quarter
and year
# timeFirstDayInQuarter Computes the first day in a given quarter
and year
# timeNthNdayInMonth Computes n-th ocurrance of a n-day in
year/month
# timeLastNdayInMonth Computes the last n-day in year/month
and many more ...
Diethelm Wuertz
Does this help. Shows how to use the basic functions to get at the answer:
# add first day of month to make it valid
x <- as.POSIXct(paste('1', 'sep2009', sep=''), format="%d%b%Y")
# now advance one month and then go back one day for the end of the month
next.mon <- seq(x, length=2, by='1 month')[2]
last.day <- seq(next.mon, length=2, by='-1 day')[2]
last.day
[1] "2009-09-30 GMT"
On Sun, Sep 13, 2009 at 2:18 PM, megh <megh700...@yahoo.com> wrote:
Is there any R function to calculate automatically the last day of a
particular month? For example "sep2009" should be converted to last day of
September of 2009?
Thanks
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