Scott: I remember there being another discussion but I can't seem to find it. How did you try to get in touch? Do you want to start a github issue and I'll comment there?
On Thursday, June 18, 2015 at 10:20:08 AM UTC-4, Scott Jones wrote: > > This was already discussed recently, here on julia-users, I'm trying to > get in touch with Dahua Lin (author of Formatting.jl) > to see about adding a simpler `sfmt` that would help with this). > > On Thursday, June 18, 2015 at 10:13:46 AM UTC-4, Tom Breloff wrote: >> >> I wonder if what we really need is just some extra additions to >> Formatting.jl (since I think this is the best place to keep standard >> formatting calls). We could add fmt2, fmt3, etc which would be meant for >> formatting floats to that precision. I suspect that's the most common use >> of formatting. Additionally, just a shorter name than "generate_formatter" >> might help adoption for non-standard formatting. If this makes sense to >> people, I'll start an issue on github, and perhaps a PR as well. >> >> >> julia> using Formatting >> >> julia> fmt2 = generate_formatter("%1.2f") >> sprintf_JTEuMmY! (generic function with 1 method) >> >> julia> fmt3 = generate_formatter("%1.3f") >> sprintf_JTEuM2Y! (generic function with 1 method) >> >> julia> @time fmt2(31231.345435245) >> 55.763 milliseconds (33974 allocations: 1444 KB) >> "31231.35" >> >> julia> @time fmt2(31231.345435245) >> 13.573 microseconds (15 allocations: 608 bytes) >> "31231.35" >> >> julia> @time fmt3(31231.345435245) >> 11.193 milliseconds (5882 allocations: 254 KB) >> "31231.345" >> >> julia> @time fmt3(31231.345435245) >> 16.231 microseconds (15 allocations: 608 bytes) >> "31231.345" >> >> >> >> >> On Thursday, June 18, 2015 at 3:55:01 AM UTC-4, cormu...@mac.com wrote: >>> >>> You could use a type: >>> >>> julia> type Out >>> n::Float64 >>> end >>> >>> julia> function Base.show(io::IO, n::Out) >>> print(io, "$(round(n.n, 2))") >>> end >>> show (generic function with 83 methods) >>> >>> then you can just use Out(x) whenever you want x rounded to 2 d.p. >>> >>> julia> for i in 0.7454539:1.5:5 >>> println("i is $i and displayed as $(Out(i))") >>> end >>> i is 0.7454539 and displayed as 0.75 >>> i is 2.2454539000000002 and displayed as 2.25 >>> i is 3.7454539000000002 and displayed as 3.75 >>> >>>