[Matplotlib-users] bisecting triangulation

2013-07-01 Thread zetah
Hi,

I have set of points in a plane and make triplot:

subplot(121)
plot(points[:,0], points[:,1], 'o')
title('Set of points')
subplot(122)
triplot(points[:,0], points[:,1])
title('Triangulation')

result: http://i.imgur.com/1LG4fxC.png

Does anyone know how to extract just the lines describing each circumscribed 
circle in this example?
Perhaps by using Delaunay from scipy.spatial?

Just to inform you, I want to do this through triangulation and above example 
is trivial that can be solved differently, while real problem doesn't contain 
circles...


Thanks


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[Matplotlib-users] Reports from SciPy 2013

2013-07-01 Thread Michael Droettboom
SciPy 2013 was a great success.  I didn't get good headcount at the 
matplotlib BOF, but it was a good number, and we had 15 participants at 
various points during the sprints.  It was nice to see the diversity of 
experience with matplotlib at the sprints, and I hope we oldtimers were 
helpful to the newtimers getting started so they can continue to 
contribute in the future.  It was also great to put some faces to many 
of the talented names I've been seeing on github and the mailing list 
lately.


I've summarized the matplotlib BOF as well as the sprint.  I've also 
gone ahead and created MEP placeholders and issues for the major themes 
discussed.


https://github.com/matplotlib/matplotlib/wiki/Scipy-2013-BOF-Notes

https://github.com/matplotlib/matplotlib/wiki/Scipy-2013-sprinting-notes

Both of these documents are based on the realtime etherpad notes we made 
during the sessions, and on some of my own recollection, which is known 
to be incomplete or incorrect on occasion.  If I missed something, or 
you feel something isn't expressed in the right light, feel free to edit 
the wiki, but we should keep further discussion on the mailing list, 
github issues or other channels.  It would also be great to have 
volunteers to help write a MEP or two based on the BOF discussion.


Thanks again.  It was really nice to meet all of you!

Mike
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Re: [Matplotlib-users] To add Bollinger Bands in finance_work2.py

2013-07-01 Thread Benjamin Root
On Sun, Jun 23, 2013 at 6:29 AM, psb1967  wrote:

> Hi,
>
> I am new to programming and this is my first major work.
>
> I wish to add Bollinger Bands and Hull Moving Average(HMA) in
> finance_work2.py. Need your guidance.
>
> Installation details:
>
> Windows 7
> Python 3.3.2
> Matplotlib 1.2.1
> Numpy 1.7.1
> Ta-Lib
>
> As it is I don't have any issues running the script however, adding BB and
> HMA will complete my task.
>
> Thanks in advance.
>
>
>
Since nobody has replied, I would suggest asking your question on the scipy
users list, which is more geared towards implementation of various
algorithms. The matplotlib mailing list mostly deals with plotting
questions.  When you need help with plotting your results, let us know!

Cheers!
Ben Root
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Re: [Matplotlib-users] To add Bollinger Bands in finance_work2.py

2013-07-01 Thread psb1967
Hi Ben,


Benjamin Root-2 wrote
> On Sun, Jun 23, 2013 at 6:29 AM, psb1967 <

> psb67@

> > wrote:
> 
> 
>>
> Since nobody has replied, I would suggest asking your question on the
> scipy
> users list, which is more geared towards implementation of various
> algorithms. The matplotlib mailing list mostly deals with plotting
> questions.  When you need help with plotting your results, let us know!
> 
> Cheers!
> Ben Root

May be it was my mistake posting a wrong request, without properly
understanding the nature of this elite site, nevertheless, I am grateful for
your taking time to reply and guide me in the proper direction.

I will give it a try with scipy user list.

Regards

Suresh




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Re: [Matplotlib-users] To add Bollinger Bands in finance_work2.py

2013-07-01 Thread William Ray Wing
On Jul 1, 2013, at 1:42 PM, psb1967  wrote:

> Hi Ben,
> 
> 
> Benjamin Root-2 wrote
>> On Sun, Jun 23, 2013 at 6:29 AM, psb1967 <
> 
>> psb67@
> 
>> > wrote:
>> 
>> 
>>> 
>> Since nobody has replied, I would suggest asking your question on the
>> scipy
>> users list, which is more geared towards implementation of various
>> algorithms. The matplotlib mailing list mostly deals with plotting
>> questions.  When you need help with plotting your results, let us know!
>> 
>> Cheers!
>> Ben Root
> 
> May be it was my mistake posting a wrong request, without properly
> understanding the nature of this elite site, nevertheless, I am grateful for
> your taking time to reply and guide me in the proper direction.
> 
> I will give it a try with scipy user list.
> 
> Regards
> 
> Suresh
> 
> 

Suresh,  I think the most likely reason no one has answered is that the 
intersection of the set of matplotlib experts and the set of people who know 
what Bollinger bands are is too close to zero.  I'm a beginner at matplotlib, 
but I do know what Bollinger bands are, and I'd suggest your best approach is 
to take a look at the matplotlib demo gallery here:  

http://matplotlib.org/examples

in particular, study the code for the fifth example from the top here:  
http://matplotlib.org/examples/pylab_examples/plotfile_demo.html

which implements a plot of Open, High. Low, and Closing prices.  I'm assuming 
you know enough math to implement a Bollinger band version of a moving average, 
and can just substitute it for the code that plots the extra lines on the 
example.

Good luck,
Bill


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[Matplotlib-users] In Memoriam, John D. Hunter III: 1968-2012

2013-07-01 Thread Fernando Perez
Hi all,

after John's untimely passing we had a memorial service in Chicago,
but only a few on these lists were able to attend. At last week's
scipy conference I read a slightly edited version of the eulogy from
that memorial service, and I figured some of you might be interested
if you missed the conference:

http://blog.fperez.org/2013/07/in-memoriam-john-d-hunter-iii-1968-2012.html

Cheers,

f

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Re: [Matplotlib-users] To add Bollinger Bands in finance_work2.py

2013-07-01 Thread psb1967
William Ray Wing wrote
> On Jul 1, 2013, at 1:42 PM, psb1967 <

> psb67@

> > wrote:
> 
> 
> Suresh,  I think the most likely reason no one has answered is that the
> intersection of the set of matplotlib experts and the set of people who
> know what Bollinger bands are is too close to zero.  I'm a beginner at
> matplotlib, but I do know what Bollinger bands are, and I'd suggest your
> best approach is to take a look at the matplotlib demo gallery here:  
> 
> http://matplotlib.org/examples
> 
> in particular, study the code for the fifth example from the top here: 
> http://matplotlib.org/examples/pylab_examples/plotfile_demo.html
> 
> which implements a plot of Open, High. Low, and Closing prices.  I'm
> assuming you know enough math to implement a Bollinger band version of a
> moving average, and can just substitute it for the code that plots the
> extra lines on the example.
> 
> Good luck,
> Bill

Hi Bill,

I am truly overwhelmed to see the kind of efforts taken to guide when one
requires guidance, esp. the fresh programmers. One of the things that I
learned when no one responds with a specific answer but shown the direction
is that I am given an opportunity to learn and work  by myself. I really
appreciate your time and will start working on the example you have cited.

In fact, I did get a complete Bollinger bands script however, I will start
working on the line you have shown; it may open up new avenues. 

Regards.

Suresh



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