This isn't really a finance-specific question, so it should probably go to the general r-help list. But I like
sign(x) == sign(y) On Mon, Jan 24, 2011 at 10:58 AM, Lui ## <[email protected]>wrote: > ...or > if( (x*y) > 0 ){ } > > Regards > Lui > > On Mon, Jan 24, 2011 at 1:27 PM, Rainer Schuermann > <[email protected]> wrote: > > On Monday, January 24, 2011 07:18:03 pm Alaios wrote: > >> Hello :) > >> I wanted to right an expression to check when x and y have the same sign > >> and I wrote the following: > >> > >> if ((x<0 && y<0) || (x>0 && y>0)) > >> > >> which looks pretty ugly to me. > >> > >> Can you please suggest me a better way for that? > >> > >> Regards > >> Alex > >> > >> ______________________________________________ > >> [email protected] 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. > >> > > > > > > if( sign( x ) == sign( y ) ) > > > > ______________________________________________ > > [email protected] 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. > > > > _______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-sig-finance > -- Subscriber-posting only. If you want to post, subscribe first. > -- Also note that this is not the r-help list where general R questions > should go. > [[alternative HTML version deleted]] _______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-finance -- Subscriber-posting only. If you want to post, subscribe first. -- Also note that this is not the r-help list where general R questions should go.
