Bill Yang wrote:
why the following codes do not run????
weekdays(as.Date('2010-11-30')) == "Monday"[1] FALSE> >
weekdays(as.Date('2010-11-29')) == "Monday"[1] FALSE
Because only in the old Mayan calendar 2010-11-30 is a monday. It is a
"Dienstag" on my computer, so as an additional Bonus you should consider
language settings.
Divide and conquer is the method to go
weekdays(as.Date('2010-11-30'))
[1] "Zyschtig"
(special Swiss language setting)
should have helped.
Dieter
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