Marie Sivertsen wrote: > Hi, > > Why do you use the equals sign for assignment instead of the arrow, is this > equal? > >
equal? you mean equivalent? mostly, yes. briefly, this is why: 1. a copy-over from other programming languages; 2. to avoid learning yet another operator; 3. after having learned the other operator, to avoid that ugly operator; 4. after an r guru complained here about people using this instead of that, to annoy him. hilsen, vQ > Mvh. > Marie > > On Thu, Feb 5, 2009 at 11:59 PM, Wacek Kusnierczyk < > waclaw.marcin.kusnierc...@idi.ntnu.no> wrote: > > >> you may want to avoid this sort of indirection by using lists with named >> components: >> >> d = list(a=c(1,3,5,7), b=c(2,4,6,8)) >> sum(unlist(d)) >> with(d, sum(a+b)) >> sum(d[['a']], d[['b']]) >> sum(sapply(n, function(v) d[[v]])) >> >> and so on. >> >> vQ >> >> ______________________________________________ >> 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.
