You are welcome, if you think this needs some clarification you could try
to edit the manual for the good of everyone else!
Cheers.
On Thu, Jul 23, 2015 at 8:26 AM, Tero Frondelius <tero.frondel...@gmail.com>
wrote:
> Thanks, it makes sense now. I actually read the documentation earlier, but
> didn't understand it. Now with the example it's very clear.
>
>
> On Thursday, July 23, 2015 at 3:56:39 PM UTC+3, Ismael VC wrote:
>>
>> help?> @sprintf
>> INFO: Loading help data...
>> Base.@sprintf("%Fmt", args...)
>>
>> Return "@printf" formatted output as string.
>>
>> julia> s = @sprintf "this is a %s" "test"
>> "this is a test"
>>
>> julia> println(s)
>> this is a test
>>
>> That is because `@sprintf` returns a string which you haven't printed.
>>
>>
>> El miércoles, 22 de julio de 2015, 23:31:36 (UTC-5), Tero Frondelius
>> escribió:
>>>
>>> Thanks. My real error was to use @sprintf macro, thus a follow up
>>> question, why this isn't printing anything:
>>> macro Write(arr)
>>> quote
>>> for i in $arr
>>> @sprintf("%12.6f\n",i)
>>> end
>>> end
>>> end
>>>
>>> a = 1e5*rand(10)
>>> @Write a
>>> This is purely for learning purposes. This was simple enough example,
>>> which I could try to develop myself.
>>>
>>>
>>> On Thursday, July 23, 2015 at 1:21:04 AM UTC+3, Ismael VC wrote:
>>>>
>>>> You forgot to interpolate the expression with `$`:
>>>>
>>>> julia> macro write(arr)
>>>>
>>>> quote
>>>>
>>>> for i in $arr
>>>>
>>>> @printf("%12.6f\n",i)
>>>>
>>>> end
>>>>
>>>> end
>>>>
>>>> end
>>>>
>>>>
>>>> julia> a = 1e5*rand(10)
>>>>
>>>> 10-element Array{Float64,1}:
>>>>
>>>> 46310.6
>>>>
>>>> 25130.5
>>>>
>>>> 30710.8
>>>>
>>>> 82089.6
>>>>
>>>> 48240.2
>>>>
>>>> 80307.5
>>>>
>>>> 62870.3
>>>>
>>>> 78309.3
>>>>
>>>> 63086.6
>>>>
>>>> 86144.5
>>>>
>>>>
>>>> julia> @write a
>>>>
>>>> 46310.583123
>>>>
>>>> 25130.507159
>>>>
>>>> 30710.765317
>>>>
>>>> 82089.565630
>>>>
>>>> 48240.227962
>>>>
>>>> 80307.529256
>>>>
>>>> 62870.334927
>>>>
>>>> 78309.327456
>>>>
>>>> 63086.608038
>>>>
>>>> 86144.524017
>>>>
>>>>
>>>> julia>
>>>>
>>>> But this can be done with anormal function.
>>>>
>>>> El miércoles, 22 de julio de 2015, 13:37:28 (UTC-5), Tero Frondelius
>>>> escribió:
>>>>>
>>>>> I'm trying to learn macros. Can you help me to get this working?
>>>>> Currently the error is that arr is not defined. Probably an obvious
>>>>> mistake, but I just don't get hang of it.
>>>>>
>>>>> macro Write(arr)
>>>>> @eval begin
>>>>> for i in arr
>>>>> @sprintf("%12.6f\n",i)
>>>>> end
>>>>> end
>>>>> end
>>>>>
>>>>>
>>>>> a = 1e5*rand(10)
>>>>> @Write a
>>>>>
>>>>>
>>>>>
>>>>> On Tuesday, July 14, 2015 at 4:20:43 PM UTC+3, ele...@gmail.com wrote:
>>>>>>
>>>>>> You could just use a macro to take the format and the array and let
>>>>>> it write the "messy" loop for you.
>>>>>>
>>>>>> On Tuesday, July 14, 2015 at 8:39:44 PM UTC+10, Ferran Mazzanti wrote:
>>>>>>>
>>>>>>> Yes thanks, I knew already looped solutions :)
>>>>>>> I was looking for somethin' compact as in the fortran statement
>>>>>>> above, though. It makes things more *neat*, if there's any such thing.
>>>>>>>
>>>>>>> On Tuesday, July 14, 2015 at 12:08:59 PM UTC+2, Kaj Wiik wrote:
>>>>>>>>
>>>>>>>> Would this work for you:
>>>>>>>> julia> a = 1e5*rand(1000)
>>>>>>>> julia> for i in a
>>>>>>>> @printf("%12.6f\n", i)
>>>>>>>> end
>>>>>>>> 74708.038385
>>>>>>>> 71244.774457
>>>>>>>> 5057.229038
>>>>>>>> 3761.297034
>>>>>>>> ...
>>>>>>>>
>>>>>>>> Remember that loops are fast in Julia...
>>>>>>>>
>>>>>>>> Kaj
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tuesday, July 14, 2015 at 9:14:37 AM UTC+3, Ferran Mazzanti
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> Thanks for the info. Actually my question comes from old fortran
>>>>>>>>> style, where I can write something of the form
>>>>>>>>> Write(1,'1000f12.6') a
>>>>>>>>> where a is an array. The string inside the write function says I
>>>>>>>>> can print 1000 doubkes in 12 characters with 6 decimals. So the
>>>>>>>>> string is a
>>>>>>>>> constant literal, and array a can contain 1000 or less elements that
>>>>>>>>> will
>>>>>>>>> be properly formatted. Is there a way to do something like this in
>>>>>>>>> Julia?
>>>>>>>>> What if Inwant to print 1000 float64 on the same line with a given
>>>>>>>>> format for each element?
>>>>>>>>> Maybebthis is easier...
>>>>>>>>> Best regards and thanks.
>>>>>>>>> Ferran.
>>>>>>>>
>>>>>>>>
