you want:
ans <- intersect(data1,data2)
class(ans) <- c("POSIXt","POSIXct")I personally think intersect should preserve the class of the object (if both args have the same class), but I think r-core has a different opinion. -Whit On Fri, Jan 23, 2009 at 9:02 AM, Tom La Bone <boo...@gforcecable.com> wrote: > > I have two collections of dates and I want to figure out what dates they have > in common. This is not giving me what I want (I don't know what it is giving > me). What is the best way to do this? > > Tom > >> data1 > [1] "1948-02-24 EST" "1949-04-12 EST" "1950-05-29 EDT" "1951-05-21 EDT" > [5] "1951-12-20 EST" "1953-01-22 EST" "1955-02-28 EST" "1956-03-08 EST" > [9] "1957-03-22 EST" "1958-02-07 EST" >> data2 > [1] "1948-02-24 EST" "1949-04-12 EST" "1950-05-29 EDT" "1951-05-21 EDT" > [5] "1951-12-20 EST" "1953-01-22 EST" "1955-02-28 EST" "1956-03-08 EST" > [9] "1957-03-22 EST" "1958-02-07 EST" >> intersect(data1,data2) > [1] -689626800 -653943600 -618350400 -587505600 -569098800 -534625200 > [7] -468356400 -436042800 -403297200 -375476400 > -- > View this message in context: > http://www.nabble.com/Dates-in-Common-tp21624909p21624909.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
