Dear Jeff and Eric, Okay and many thanks. Best Regards, Ashim
On Wed, Apr 18, 2018 at 4:56 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > Look at > > which(x>100) > > This is a zero-length vector. The negative of nothing is nothing, not a > list of all possible index values. > > Do you want > > x[ !( x > 100 ) ] > > ? > > On April 18, 2018 6:13:30 AM CDT, Ashim Kapoor <ashimkap...@gmail.com> > wrote: > >Dear All, > > > >Here is a reprex: > > > >> x<- 1:100 > >> x[-which(x>100)] > >integer(0) > > > >In words, I am finding out which indices correspond to values in x > >which > >are greater than 100 ( there are no such items ) . Then I remove > >those > >indices. I should get back the x that I started with since there are no > >items in x which are bigger than 100 . Instead, it is returning an > >empty > >vector. > > > >Why is this ? What am I misunderstanding? > > > >Best Regards, > >Ashim > > > > [[alternative HTML version deleted]] > > > >______________________________________________ > >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > >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. > > -- > Sent from my phone. Please excuse my brevity. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
