[R] strange behavior when adding a day to dates

markleeds at verizon.net markleeds at verizon.net
Thu Jun 1 21:01:01 CEST 2006

I have the following problem which seems really strange but it's more likely something that I don't understand ?

The code below works in that it adds 1 day to all of the dates.
( NB : the Fcalendar package needs to be loaded for this code to run )



begMonthDates = begMonthDates + 24*3600


Th really strange thing is that, in the code below, the
dates don't change ? The code is essentially the same
as above except in this case I only want to add one day to days
that are not business days ? If anyone could help me with this,
it would be MUCH appreciated. I've been playing with this for
most of the day. ( badindices is not NULL )


badindices=which(isBizday(begMonthDates,holidays=holiday.NYSE()) == F)

begMonthDates[badindices]=begMonthDates[badindices] + 24*3600

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