I'm afraid my beginner status with Julia is showing:
I ran Pkg.add("Formatting"), and then using Formatting came back with a
whole bunch of warnings, most about Union(args...) being depricated, use
Union(args....) instead.
When all is said and done, fmt_default! gives me a UndefVarError.
Help!
On Tue, Sep 22, 2015 at 2:45 PM, Tom Breloff <[email protected]> wrote:
> Thanks Larry, that's helpful. Just for discussions sake, here's a quick
> macro that calls my proposed `fmt` method under the hood, and does
> something similar to what you showed. What do you think about this style
> (and what would you do differently)?
>
> using Formatting
>
> macro fmt(args...)
> expr = Expr(:block)
> expr.args = [:(print(fmt($(esc(arg))), "\t\t")) for arg in args]
> push!(expr.args, :(println()))
> expr
> end
>
>
> And then an example usage:
>
> In:
>
> x = 1010101
> y = 555555.555555555
> fmt_default!(width=15)
>
> @fmt x y
>
> fmt_default!(Int, :commas)
> fmt_default!(Float64, prec=2)
>
> @fmt x y
>
>
> Out:
>
> 1010101 555555.555556
> 1,010,101 555555.56
>
>
>
> On Tuesday, September 22, 2015 at 3:08:35 PM UTC-4, lawrence dworsky wrote:
>>
>> Hi Tom
>>
>> What I like about it is that you can just use print *, dumbly and it
>> always provides useful, albeit not beautiful, results. When I'm writing a
>> program, I use print statements very liberally to observe what's going on -
>> I find this more convenient than an in-line debugger.
>>
>> As the last line in my program below shows, it's easy to switch to
>> formatted output when you want to. The formatting capability is pretty
>> thorough, I'm just showing a simple example.
>>
>> This Fortran program doesn't do anything, it just illustrates what the
>> print statement produces:
>>
>>
>> real x, y
>> integer i, j
>> complex z
>> character*6 name
>>
>> x = 2.6
>> y = -4.
>> i = 36
>> j = -40
>> z = cmplx(17., 19.)
>> name = 'Larry'
>>
>> print *, x, y, i, j, z
>> print *, 'x = ', x, ' and j = ', j
>> print *, 'Hello, ', name, j
>> print '(2f8.3, i5)', x, y, j
>>
>> stop
>> end
>>
>>
>> The output is:
>>
>> 2.60000 -4.00000 36 -40
>> (17.0000, 19.0000)
>> x = 2.60000 and j = -40
>> Hello, Larry -40
>> 2.600 -4.000 -40
>>
>>
>> Is this what you are looking for?
>>
>> Larry
>>
>>
>>
>> On Tue, Sep 22, 2015 at 11:57 AM, Tom Breloff <[email protected]> wrote:
>>
>>> Larry: can you provide details on exactly what you like about Fortran's
>>> print statement? Did it provide good defaults? Was it easy to customize?
>>>
>>> On Tue, Sep 22, 2015 at 12:55 PM, LarryD <[email protected]> wrote:
>>>
>>>> Something I miss from Fortran is the very convenient default "print *,
>>>> ..... " It handled almost 100% of my needs while working on a program and
>>>> was easily replaced by real formatting when the time came. Is there any
>>>> chance that Julia could get something like this?
>>>>
>>>> Thanks
>>>>
>>>>
>>>> On Monday, September 21, 2015 at 3:46:31 AM UTC-5, Ferran Mazzanti
>>>> wrote:
>>>>>
>>>>> Dear all,
>>>>>
>>>>> I could use some help here, because I can't believe I'm not able to
>>>>> easily print formatted numbers under Julia in a easy way. What I try to do
>>>>> is to write a function that, given a vector, prints all its components
>>>>> with
>>>>> a user-defined format. I was trying something of the form
>>>>>
>>>>> function Print_Vec(aux_VEC,form_VEC)
>>>>> form_VEC :: ASCIIString
>>>>> str_VEC = "%16.8f"
>>>>> for elem_VEC in aux_VEC
>>>>> str_VEC += @sprintf(form_VEC,elem_VEC)
>>>>> end
>>>>> return str_VEC
>>>>> end
>>>>>
>>>>> However, that doesn't work because it looks like the first argument in
>>>>> @sprintf must be a explicit string, and not a variable.
>>>>> Is there anything I can do with that?
>>>>>
>>>>> Thanks a lot for your help.
>>>>>
>>>>
>>>
>>
