The asterisks were an artefact of the copy-pasting it seems :) Anyway,
you're right about the symbol construction, it failed. So I tried
macro scatter(axno, reim, λno, col)
:(axes[$axno][:scatter](sbox.kx, $reim([symbol("OnePump.λ" *
string($λno))(0., momx, np) for momx in sbox.kx]), s=15, alpha=0.2,
color=$col))
end
but this also fails with
type: anonymous: in apply, expected Function, got Symbol
On Monday, July 7, 2014 5:14:50 PM UTC+2, Jacob Quinn wrote:
>
> Why do you have the asterisks (`*`) in your macro definition?
>
> I'm pretty sure the "OnePump.λ$λno" interpolation isn't going to work. I
> don't think you can't interpolate into a symbol like that. You may have to
> try renaming those variables more generically, or do some manual symbol
> construction; i.e. symbol("OnePump.λ" * string($λno))
>
>
> On Mon, Jul 7, 2014 at 11:05 AM, Andrei Berceanu <[email protected]
> <javascript:>> wrote:
>
>> Jacob, tnx for the quick reply and sorry about the redundant for loop.
>> This is how I decided to do it:
>>
>> macro scatter(axno, reim, λno, col)
>> :(*axes[$axno][:scatter](sbox.kx, $reim([OnePump.λ$λno(0., momx, np)
>> for momx in sbox.kx]), s=15, alpha=0.2, color=$col) )*
>> end
>>
>> fig, axes = plt.subplots(2,1, figsize=(8,6))
>> @scatter(1, real, 1, "orange")
>> @scatter(1, real, 2, "blue")
>> @scatter(2, imag, 1, "orange")
>> @scatter(2, imag, 2, "blue")
>>
>> but i get `missing separator in tuple` when I define the macro. Any clues
>> why that might be?
>>
>>
>> On Monday, July 7, 2014 3:40:58 PM UTC+2, Jacob Quinn wrote:
>>
>>> I'm not sure I quite understand your example (your `i` variable is never
>>> used?), but macros just take zero or more expression/symbol arguments and
>>> return expressions, so you could easily do.
>>>
>>> macro orangeaxes()
>>> :(*axes[1][:scatter](kx, real([OnePump.λ1(0., momx, np) for momx in
>>> kx]), s=15, alpha=0.4, color="orange") )*
>>> end
>>> macro axes()
>>> :(*axes[1][:scatter](kx, real([OnePump.λ2(0., momx, np) for momx in
>>> kx]), s=15, alpha=0.2) )*
>>> end
>>> for i = 1:2
>>> @orangeaxes
>>> @axes
>>> @orangeaxes
>>> @axes
>>> end
>>>
>>> Note the use of the `quote....end` shorthand `:(...)` in the macro
>>> definitions so that an expression is returned.
>>>
>>> -Jacob
>>>
>>>
>>> On Mon, Jul 7, 2014 at 6:04 AM, Andrei Berceanu <[email protected]>
>>> wrote:
>>>
>>>> axes[1][:scatter](kx, real([OnePump.λ1(0., momx, np) for momx in kx]),
>>>> s=15, alpha=0.4, color="orange")
>>>
>>>
>>>
>>>
>
