Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #74280 > unrolled thread

Re: NaN comparisons - Call For Anecdotes

Back to article view | Back to comp.lang.python

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: NaN comparisons - Call For Anecdotes "Anders J. Munch" <2014@jmunch.dk> - 2014-07-09 23:09 +0200
    Re: NaN comparisons - Call For Anecdotes alister <alister.nospam.ware@ntlworld.com> - 2014-07-10 07:55 +0000
      Re: NaN comparisons - Call For Anecdotes "Anders J. Munch" <2014@jmunch.dk> - 2014-07-14 18:44 +0200
        Re: NaN comparisons - Call For Anecdotes Steven D'Aprano <steve@pearwood.info> - 2014-07-15 05:19 +0000
          Re: NaN comparisons - Call For Anecdotes "Anders J. Munch" <2014@jmunch.dk> - 2014-07-15 14:32 +0200
          Re: NaN comparisons - Call For Anecdotes Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-15 16:29 +0100
      Re: NaN comparisons - Call For Anecdotes Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-14 18:52 +0100
      Re: NaN comparisons - Call For Anecdotes Ian Kelly <ian.g.kelly@gmail.com> - 2014-07-14 13:42 -0600

#74280 — Re: NaN comparisons - Call For Anecdotes

Ethan Furman:
> I would suggest you ask for this on the numerical mailing lists instead of 
> here -- and you may not want to offer a beer to everyone that has an anecdote 
> for NaN behavior being useful.
I don't have time to start this discussion over again on another mailing list. 
Don't anyone on those lists read python-list also?

regards, Anders

[toc] | [next] | [standalone]

#74292

On Wed, 09 Jul 2014 23:09:36 +0200, Anders J. Munch wrote:

> Ethan Furman:
>> I would suggest you ask for this on the numerical mailing lists instead
>> of here -- and you may not want to offer a beer to everyone that has an
>> anecdote for NaN behavior being useful.
> I don't have time to start this discussion over again on another mailing
> list.
> Don't anyone on those lists read python-list also?
> 
> regards, Anders

they possibly do, but prefer to keep discussions to the proper forum



-- 
If you are going to walk on thin ice, you may as well dance.

[toc] | [prev] | [next] | [standalone]

#74429

alister wrote:
> I don't have time to start this discussion over again on another mailing
> list.
> Don't anyone on those lists read python-list also?
>
> they possibly do, but prefer to keep discussions to the proper forum

The semantics of the Python programming language is on-topic for python-list. 
This is about float.__eq__, not about numpy or SciPy.
Maybe they just don't like beer?

regards, Anders

[toc] | [prev] | [next] | [standalone]

#74467

On Mon, 14 Jul 2014 18:44:15 +0200, Anders J. Munch wrote:

> alister wrote:
>> I don't have time to start this discussion over again on another
>> mailing list.
>> Don't anyone on those lists read python-list also?
>>
>> they possibly do, but prefer to keep discussions to the proper forum
> 
> The semantics of the Python programming language is on-topic for
> python-list. This is about float.__eq__, not about numpy or SciPy. Maybe
> they just don't like beer?

It's about NAN != NAN. The heaviest uses of NANs are numpy and scipy 
users.

You remind me of the proverbial drunk who lost his keys in the park, but 
looks for them in the street under the street light because that's where 
the light is. That's assuming that you actually want an honest answer to 
your question.

If you wanted to learn about use-cases for NANs, you ought to ask 
somewhere where there was a high proportion of numeric programmers, not 
on some list merely because it was convenient.

I'll give you the benefit of the doubt, and assume that when you first 
posted you hadn't realised that the audience here does not have the 
relevant experience, but by refusing to ask the question elsewhere, and 
by making snide comments that "they don't like beer", that pretty much 
gives the game away that you're looking to have your opinion confirmed 
rather than looking for an honest answer.


-- 
Steven

[toc] | [prev] | [next] | [standalone]

#74480

Steven D'Aprano:
> I'll give you the benefit of the doubt, and assume that when you first
> posted you hadn't realised that the audience here does not have the
> relevant experience, but by refusing to ask the question elsewhere, and
> by making snide comments that "they don't like beer", that pretty much
> gives the game away that you're looking to have your opinion confirmed
> rather than looking for an honest answer.

I really did run out of time when I said I did: I spent the last 5 days running 
a chess tournament with 137 participants, with the tournament management 
software written in Python by yours truly. Which worked beautifully, Python is a 
great language. And I'm going to Iceland on vacation tomorrow, so I'm not going 
to start a new discussion of a different mailing list just now, maybe later. Not 
everyone is as prolific a writer as you are, Steven.

The talk about "the wrong list" would have carried more weight if you had 
started out by saying "wrong list", instead of going through every other 
argument first, before punting like that. By the way, which list is the 
appropriate one? The numpy and SciPy mailing lists are first and foremost about 
numpy and SciPy, I presume. Is there a general numerics-list somewhere also? I 
don't see any on https://mail.python.org/mailman/listinfo.

By the way, you guys seem to have overlooked the opportunity for arbitrage: 
*Anyone* can go to a numerical list, poll for examples, and come back and earn 
some beer :)

regards, Anders

[toc] | [prev] | [next] | [standalone]

#74489

On 15/07/2014 13:32, Anders J. Munch wrote:

> By the way, which list
> is the appropriate one? The numpy and SciPy mailing lists are first and
> foremost about numpy and SciPy, I presume. Is there a general
> numerics-list somewhere also? I don't see any on
> https://mail.python.org/mailman/listinfo.
>

Try here http://news.gmane.org/index.php?prefix=gmane.comp.python

-- 
My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.

Mark Lawrence

---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com

[toc] | [prev] | [next] | [standalone]

#74432

On 14/07/2014 17:44, Anders J. Munch wrote:
> alister wrote:
>> I don't have time to start this discussion over again on another mailing
>> list.
>> Don't anyone on those lists read python-list also?
>>
>> they possibly do, but prefer to keep discussions to the proper forum
>
> The semantics of the Python programming language is on-topic for
> python-list. This is about float.__eq__, not about numpy or SciPy.
> Maybe they just don't like beer?
>
> regards, Anders
>

Maybe they recognise the eqivalent of our resident unicode expert.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.

Mark Lawrence

---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com

[toc] | [prev] | [next] | [standalone]

#74433

On Mon, Jul 14, 2014 at 10:44 AM, Anders J. Munch <2014@jmunch.dk> wrote:
> alister wrote:
>>
>> I don't have time to start this discussion over again on another mailing
>> list.
>> Don't anyone on those lists read python-list also?
>>
>> they possibly do, but prefer to keep discussions to the proper forum
>
>
> The semantics of the Python programming language is on-topic for
> python-list. This is about float.__eq__, not about numpy or SciPy.
> Maybe they just don't like beer?

Well, I don't see anybody with numerical expertise chiming in here to
say they agree with you either, so that tells me you've probably got
the wrong audience.

[toc] | [prev] | [standalone]

Back to top | Article view | comp.lang.python

csiph-web