Travis Oliphant wrote:
> Sebastian Haase wrote:
>> On Wednesday 23 August 2006 18:37, Travis Oliphant wrote:
>>
>>> David M. Cooke wrote:
>>>
>>>> On Wed, 23 Aug 2006 16:22:52 -0700
>>>>
>>>> Sebastian Haase <[EMAIL PROTECTED]> wrote:
>>>>
>>>>> On Wednesday 23 August 2006 16:12, Bill Baxter wrote:
>>>>>
>>>>>> The thing that I find I keep forgetting is that abs() is a built-in,
>>>>>> but other simple functions are not. So it's abs(foo), but
>>>>>> numpy.floor(foo) and numpy.ceil(foo). And then there's round() which
>>>>>> is a built-in but can't be used with arrays, so numpy.round_(foo).
>>>>>> Seems like it would be more consistent to just add a numpy.abs() and
>>>>>> numpy.round().
>>>>>>
>>>>> Regarding the original subject:
>>>>> a) "absolute" is impractically too much typing and
>>>>> b) I just thought some (module-) functions might be "forgotten" to be
>>>>> put in as (object-) methods ... !?
>>>>>
>>>> Four-line change, so I added a.abs() (three lines for array, one
>>>> for MaskedArray).
>>>>
>>> While I appreciate it's proactive nature, I don't like this change
>>> because it adds another "ufunc" as a method. Right now, I think conj is
>>> the only other method like that.
>>>
>>> Instead, I like better the idea of adding abs, round, max, and min to
>>> the "non-import-*" namespace of numpy.
>>>
>>>
>> How does this compare with
>> mean, min, max, average
>> ?
>>
>
> I'm not sure what this question is asking, so I'll answer what I think
> it is asking.
>
> The mean, min, max, and average functions are *not* ufuncs. They are
> methods of particular ufuncs.
>
Yes - that's what wanted to hear ! I'm just trying to bring in the
"user's" point of view: Not thinking about how they are implemented
under the hood: mean,min,max,average have a very similar "feeling" to
them as "abs".
I'm hoping this ("seeing things from the user p.o.v.") can stay like
that for as long as possible !
Numpy should be focused on "scientist not programers".
(This is just why I posted this comment about "arr.abs()" - but if
there is a good reason to not have this for "simplicity reasons 'under
the hood'" I can see that perfectly fine !)
- Sebastian
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