Dahua is pretty busy and lives in a very different time zone. He also may
not want to respond to direct messages.
On Thu, Jun 18, 2015 at 11:44 AM, Scott Jones <scott.paul.jo...@gmail.com>
wrote:
> I tried directly e-mailing him (after having gotten a lot of grief for
> posting so much!), but I haven't heard back...
>
>
> On Thursday, June 18, 2015 at 10:30:05 AM UTC-4, Tom Breloff wrote:
>>
>> 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
>>>>>
>>>>>
