I do this a few times in the blotter package. Try: Dates <- unique(do.call(c,c(lapply(foo, index), use.names=FALSE, recursive=FALSE)))
On Fri, Oct 31, 2014 at 11:44 AM, ce <zadi...@excite.com> wrote: > Dear all, > > I have a list , and I want to get all indexes ( dates ) of xts objects in > one list: > > foo<-list(A = xts(seq(2),seq(Sys.Date(),Sys.Date()+2,length.out=2)), B = > xts(seq(1),seq(Sys.Date()-2,Sys.Date()-1,length.out=1)) ) > >> foo > $A > [,1] > 2014-10-31 1 > 2014-11-02 2 > > $B > [,1] > 2014-10-29 1 > > lapply(foo, function(x) index(x)) gives A and B values separately . I > want to get one list like : > > "2014-10-31" "2014-11-02" "2014-10-29" > > Thanks a lot. > > ______________________________________________ > 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. -- Joshua Ulrich | about.me/joshuaulrich FOSS Trading | www.fosstrading.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.
