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Groups > comp.lang.python > #98781
| From | Tim Daneliuk <tundraBOGUS@tundraware.com> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: What is '@' for |
| Date | 2015-11-13 17:43 -0600 |
| Organization | A noiseless patient Spider |
| Message-ID | <56467593.9060304@tundraware.com> (permalink) |
| References | <b4254670-28c9-4e2c-a221-a27c0d6f62e9@googlegroups.com> <mailman.311.1447456460.16136.python-list@python.org> |
On 11/13/2015 05:14 PM, Chris Angelico wrote:
> On Sat, Nov 14, 2015 at 10:04 AM, fl <rxjwg98@gmail.com> wrote:
>> I read the following code snippet. A question is here about '@'.
>> I don't find the answer online yet.
>>
>> What function is it here?
>>
>>
>> @pymc.deterministic
>> def theta(a=alpha, b=beta):
>> """theta = logit^{-1}(a+b)"""
>> return pymc.invlogit(a+b*x)
>
> That's called a "function decorator". And now that you know the name,
> you'll be able to find what it is online; as well as the Python docs,
> there are a number of blog posts and other articles about it.
>
> ChrisA
>
One small point of order ... if you want to be precise, "@pymc.deterministic" is a *function decoration*. The "decorator" is the function pymc.deterministic().
I know this is a fussy point, but this distinction is helpful when first learning the concept.
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What is '@' for fl <rxjwg98@gmail.com> - 2015-11-13 15:04 -0800
Re: What is '@' for Chris Angelico <rosuav@gmail.com> - 2015-11-14 10:14 +1100
Re: What is '@' for Tim Daneliuk <tundraBOGUS@tundraware.com> - 2015-11-13 17:43 -0600
Re: What is '@' for Terry Reedy <tjreedy@udel.edu> - 2015-11-13 18:43 -0500
Re: What is '@' for Dave Farrance <df@see.replyto.invalid> - 2015-11-14 09:14 +0000
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