Or best: rep(NA_real_, 10)
On Thu, Nov 26, 2009 at 2:31 PM, Henrique Dallazuanna <www...@gmail.com> wrote: > You can try this also: > > rep(NA_integer_, 10) > > On Thu, Nov 26, 2009 at 2:03 PM, Rob Steele > <freenx.10.robste...@xoxy.net> wrote: >> These are the ways that occur to me. >> >> ## This produces a logical vector, which will get converted to a numeric >> ## vector the first time a number is assigned to it. That seems >> ## wasteful. >> x <- rep(NA, n) >> >> ## This does the conversion ahead of time but it's still creating a >> ## logical vector first, which seems wasteful. >> x <- as.numeric(rep(NA, n)) >> >> ## This avoids type conversion but still involves two assignments for >> ## each element in the vector. >> x <- numeric(n) >> x[] <- NA >> >> ## This seems reasonable. >> x <- rep(as.numeric(NA), n) >> >> Comments? >> >> Thanks, >> Rob >> >> ______________________________________________ >> 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. >> > > > > -- > Henrique Dallazuanna > Curitiba-Paraná-Brasil > 25° 25' 40" S 49° 16' 22" O > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.
