El viernes, 21 de febrero de 2014 16:03:19 UTC-6, Steven G. Johnson escribió: > > > > On Friday, February 21, 2014 9:02:48 AM UTC-5, David P. Sanders wrote: >> >> OK, I think I have answered my own question: a Set is the good structure. >> And to create a set from an array I can do something like >> >> s = Set([3, 4, 5]...) >> >> or >> >> s = Set([i*2 for i in 1:5]...) >> >> which would be the closest thing to a set comprehension? >> > > The closest thing that avoids the overhead of creating an array first > would currently be a loop: > > s = Set(Int) > for i in 1:5 > push!(s, i*2) > end >
OK, this is the conclusion I had reached, thanks. > > At some point, if (when?) > https://github.com/JuliaLang/julia/issues/4470 > gets added, it will be easy to add support for syntax like Set(Int, i*2 > for i in 1:5), where the second argument implicitly creates an iterable > type. > Sounds good!
