Re: [matplotlib-devel] [Matplotlib-users] ANN: mpltools 0.1 release

2012-07-17 Thread todd rme
On Wed, Jul 11, 2012 at 5:23 PM, John Hunter  wrote:
>
>
> On Wed, Jul 11, 2012 at 10:09 AM, Damon McDougall
>  wrote:
>>
>> Well, as Ben said, that error fill plot is neato! It doesn't look too
>> complicated, either. I'd be more than happy to port it over later today
>> when I get bored of typing up my thesis. It'll probably only take me
>> about 30 minutes.
>>
>> If nobody is opposed to this idea, I'll go ahead and submit a PR this
>> evening (British Summer (hah!) Time).
>
>
>
> While it is a nice graph, I am not sure that the use case is common enough
> to justify a new plotting method.  One can get the same result with:
>
>
>   In [68]: x = np.linspace(0, 2 * np.pi)
>
>   In [69]: y_sin = np.sin(x)
>
>   In [70]: err = np.concatenate([y_sin + 0.2, y_sin[::-1] - 0.2])
>
>   In [71]: plot(x, y_sin)
>   Out[71]: []
>
>   In [72]: fill_between(np.concatenate([x, x[::-1]]), err, facecolor='red',
> alpha=0.5)
>   Out[72]: 
>
> Admittedly the [::-1] thing is a bit counter-intuitive, but rather than
> adding a new plotting method, perhaps we would be better off with a helper
> method to create the xs and ys for fill_between
>
>   xs, ys = mlab.pad_line(x, y, 0.2)
>   fill_between(xs, ys)
>
> JDH

What about adding a property to the existing errorbar to let someone
change it to the filled version?  This could also, potentially, be
extended with other types of error bars if the need arises.

-Todd

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Re: [matplotlib-devel] [Matplotlib-users] ANN: mpltools 0.1 release

2012-07-17 Thread Benjamin Root
On Tue, Jul 17, 2012 at 6:25 AM, todd rme  wrote:

> On Wed, Jul 11, 2012 at 5:23 PM, John Hunter  wrote:
> >
> >
> > On Wed, Jul 11, 2012 at 10:09 AM, Damon McDougall
> >  wrote:
> >>
> >> Well, as Ben said, that error fill plot is neato! It doesn't look too
> >> complicated, either. I'd be more than happy to port it over later today
> >> when I get bored of typing up my thesis. It'll probably only take me
> >> about 30 minutes.
> >>
> >> If nobody is opposed to this idea, I'll go ahead and submit a PR this
> >> evening (British Summer (hah!) Time).
> >
> >
> >
> > While it is a nice graph, I am not sure that the use case is common
> enough
> > to justify a new plotting method.  One can get the same result with:
> >
> >
> >   In [68]: x = np.linspace(0, 2 * np.pi)
> >
> >   In [69]: y_sin = np.sin(x)
> >
> >   In [70]: err = np.concatenate([y_sin + 0.2, y_sin[::-1] - 0.2])
> >
> >   In [71]: plot(x, y_sin)
> >   Out[71]: []
> >
> >   In [72]: fill_between(np.concatenate([x, x[::-1]]), err,
> facecolor='red',
> > alpha=0.5)
> >   Out[72]: 
> >
> > Admittedly the [::-1] thing is a bit counter-intuitive, but rather than
> > adding a new plotting method, perhaps we would be better off with a
> helper
> > method to create the xs and ys for fill_between
> >
> >   xs, ys = mlab.pad_line(x, y, 0.2)
> >   fill_between(xs, ys)
> >
> > JDH
>
> What about adding a property to the existing errorbar to let someone
> change it to the filled version?  This could also, potentially, be
> extended with other types of error bars if the need arises.
>
> -Todd
>

Intriguing idea.  I am actually quite comfortable with that.

Ben Root
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Re: [matplotlib-devel] [Matplotlib-users] ANN: mpltools 0.1 release

2012-07-17 Thread Damon McDougall
On Tue, Jul 17, 2012 at 08:21:50AM -0500, Benjamin Root wrote:
> On Tue, Jul 17, 2012 at 6:25 AM, todd rme  wrote:
> 
> > On Wed, Jul 11, 2012 at 5:23 PM, John Hunter  wrote:
> > >
> > >
> > > On Wed, Jul 11, 2012 at 10:09 AM, Damon McDougall
> > >  wrote:
> > >>
> > >> Well, as Ben said, that error fill plot is neato! It doesn't look too
> > >> complicated, either. I'd be more than happy to port it over later today
> > >> when I get bored of typing up my thesis. It'll probably only take me
> > >> about 30 minutes.
> > >>
> > >> If nobody is opposed to this idea, I'll go ahead and submit a PR this
> > >> evening (British Summer (hah!) Time).
> > >
> > >
> > >
> > > While it is a nice graph, I am not sure that the use case is common
> > enough
> > > to justify a new plotting method.  One can get the same result with:
> > >
> > >
> > >   In [68]: x = np.linspace(0, 2 * np.pi)
> > >
> > >   In [69]: y_sin = np.sin(x)
> > >
> > >   In [70]: err = np.concatenate([y_sin + 0.2, y_sin[::-1] - 0.2])
> > >
> > >   In [71]: plot(x, y_sin)
> > >   Out[71]: []
> > >
> > >   In [72]: fill_between(np.concatenate([x, x[::-1]]), err,
> > facecolor='red',
> > > alpha=0.5)
> > >   Out[72]: 
> > >
> > > Admittedly the [::-1] thing is a bit counter-intuitive, but rather than
> > > adding a new plotting method, perhaps we would be better off with a
> > helper
> > > method to create the xs and ys for fill_between
> > >
> > >   xs, ys = mlab.pad_line(x, y, 0.2)
> > >   fill_between(xs, ys)
> > >
> > > JDH
> >
> > What about adding a property to the existing errorbar to let someone
> > change it to the filled version?  This could also, potentially, be
> > extended with other types of error bars if the need arises.
> >
> > -Todd
> >
> 
> Intriguing idea.  I am actually quite comfortable with that.
> 

I like this idea, too.

> Ben Root

-- 
Damon McDougall
http://damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

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