Re: [matplotlib-devel] Fwd: possible issue with _spectral_helper function in matplotlib/mlab.py when compensate windowing loss

2015-03-26 Thread Benjamin Root 
wouldn't `np.sqrt(np.ones(NFFT)**2).sum()` just be NFFT? So, it looks like
our power spectra isn't normalized at that point. But, IIRC, the code that
calls this helper function does normalize the result if the user specifies
it to be.

Ben Root

On Thu, Mar 26, 2015 at 8:35 AM, Thomas Caswell  wrote:

> Forwarding an email to the devel list, we seem to have an error in mlab.
>
> Dimitris:  Please send future issues like this directly to the mailing
> list or create an issue on GH.
>
> -- Forwarded message -
> From: Dimitris Daniel 
> Date: Thu, Mar 26, 2015 at 4:04 AM
> Subject: possible issue with _spectral_helper function in
> matplotlib/mlab.py when compensate windowing loss
> To: , 
>
>
> Dear Mr. Thomas and Mr. Martin,
>
> First of all I would like to thank you for your work.
> My name is Dimitris Daniel and I use _spectral_helper in a process.
>
> I think that there is a problem when we try to compensate windowing loss.
>
> You use the row:
> result /= (np.abs(windowVals)**2).sum()
>
> However as I can see in Bendat & Piersol Sec 11.5.2. (see attached 3.png)
> I think the right is something like:
>
> result *= np.sqrt((np.ones(NFFT)**2).sum() /
> (np.abs(windowVals)**2).sum())
>
> Actually I had some correlation problems with the data from a customer of
> my for which I build a script for Signal Analysis.
>
> He gave me the input signal and the output he gets from the hardware he is
> using.
>
> I use some parts from your functions and it was not possible to get the
> same results.
> By changing this row the results are matching together.
>
>
> Am I missing something or am I right.
>
> Thank you very much for your time and sorry for any inconvenience.
>
> I am looking forward to your response.
> Best Regards,
> Dimitris Daniel
>
>
>
>
>
>
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[matplotlib-devel] Move MEPs into main documentation

2015-03-26 Thread Thomas Caswell 
I am proposing to move the MEPs from the wiki into the main documentation.

https://github.com/matplotlib/matplotlib/pull/4249

The main benifits to this are to make preserve the MEPs long term, to keep
a better history of their development, and to improve the discussion around
them.

The motivation behind using the wiki was to reduce the barriers to working
on the MEP, but it has not worked out as well as hoped.  Having to modify
MEPs via a PR does increase the barriers on working on them, but it allows
us to apply the tools we already use for code review to them.

Tom
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Re: [matplotlib-devel] Fwd: SciPy 2015 CFP Email 2

2015-03-26 Thread Thomas Caswell 
I also think we should have a 'state of the library' talk.

We definitely have a few important things to announce/show off:
  - FSA
  - nbagg/notebook
  - new default colors
  - style module

and should have a couple more by July
  - sane serialize/deserialize + interop with plotly/bokeh
  - better toolbar
  - better interactive OO
  - improved docs

I will be there for the main conference and the sprints and am willing to
give this talk, but will defer if someone else wants to do it.

Does anyone want to volunteer to be Ben's second on his tutorial?



On Fri, Mar 13, 2015 at 2:46 PM Olga Botvinnik  wrote:

> I'd be very interested in hearing a "state of matplotlib" talk.
>
> On Fri, Mar 13, 2015, 11:29 Phil Elson  wrote:
>
>> Orchestrating MPL tutorials and talks in this thread would be a good
>> idea. I'd be happy to help anybody planning on submitting anything relating
>> specifically to matplotlib, and wonder if we should do a "state of
>> matplotlib" type talk similar to the one Mike did 2 years ago.
>>
>> On 13 March 2015 at 02:05, Benjamin Root  wrote:
>>
>>> Yes, I plan to submit my time-honored, and requested "Anatomy of
>>> Matplotlib" tutorial. Now, I am not entirely sure I will be able to attend
>>> the conference this year, so perhaps someone else might be willing to step
>>> in and give it this year?
>>>
>>> Note that my tutorial is geared for beginners. So there is still plenty
>>> of opportunity for someone else to submit a tutorial for more advanced
>>> users!
>>>
>>> Cheers!
>>> Ben Root
>>>
>>> On Thu, Mar 12, 2015 at 6:46 PM, Nelle Varoquaux <
>>> [email protected]> wrote:
>>>
 Hi everyone,

 Is someone submitting a tutorial on matplotlib? The call for tutorial
 is open, and I think it would be nice to have one on matplotlib.

 Cheers,
 N

 -- Forwarded message --
 From: SciPy 2015 Organizers 
 Date: 11 March 2015 at 01:02
 Subject: SciPy 2015 CFP Email 2
 To: [email protected]


   [image: SciPy 2015 Logo]
 

Tick-Tock, Tick-Tock:
 T-Minus 6 Days for Tutorial Submissions
  *Due Date: March 16, 2015*

 The SciPy experience kicks off with two days of tutorials
 
 (July 6-7). These sessions provide extremely affordable access to expert
 training, and consistently receive fantastic feedback from participants.
 We're looking for submissions on topics from introductory to advanced -
 we'll have attendees across the gamut looking to learn. Plus, you can earn
 an instructor stipend to apply towards your conference participation. Visit
 the SciPy 2015 website for details
 
 or submit a proposal here
 
 .

   Submit a Tutorial Proposal Here
 
  Talk
 and Poster Proposals Due April 1st

 There's always something new and exciting going on in the world of
 Science + Python, this is your chance to get up and talk about it!

 *Visit the SciPy 2015 website
 
 for full details or click here to submit a proposal
 .*
 Choose a topic in one of the 3 main conference tracks:

- Scientific Computing in Python (General track)
- Python in Data Science
- Quantitative and Computational Social Sciences

 * And/or submit for one of the 7 domain-specific mini-symposia
 :*

- Astronomy and astrophysics
- Computational life and medical sciences
- Engineering
- Geographic information systems (GIS)
- Geophysics
- Oceanography and meteorology
- Visualization, vision and imaging

   Submit a Talk or Poster Proposal Here

Re: [matplotlib-devel] Fwd: SciPy 2015 CFP Email 2

2015-03-26 Thread Michael Droettboom 
This sounds great.  Unfortunately, I can't attend Scipy this year due to 
a family commitment, but would be more than happy to help put together 
and review materials beforehand.


Cheers,
Mike

On 03/26/2015 10:59 AM, Thomas Caswell wrote:


I also think we should have a 'state of the library' talk.

We definitely have a few important things to announce/show off:
  - FSA
  - nbagg/notebook
  - new default colors
  - style module

and should have a couple more by July
  - sane serialize/deserialize + interop with plotly/bokeh
  - better toolbar
  - better interactive OO
  - improved docs

I will be there for the main conference and the sprints and am willing 
to give this talk, but will defer if someone else wants to do it.


Does anyone want to volunteer to be Ben's second on his tutorial?



On Fri, Mar 13, 2015 at 2:46 PM Olga Botvinnik > wrote:


I'd be very interested in hearing a "state of matplotlib" talk.


On Fri, Mar 13, 2015, 11:29 Phil Elson mailto:[email protected]>> wrote:

Orchestrating MPL tutorials and talks in this thread would be
a good idea. I'd be happy to help anybody planning on
submitting anything relating specifically to matplotlib, and
wonder if we should do a "state of matplotlib" type talk
similar to the one Mike did 2 years ago.

On 13 March 2015 at 02:05, Benjamin Root mailto:[email protected]>> wrote:

Yes, I plan to submit my time-honored, and requested
"Anatomy of Matplotlib" tutorial. Now, I am not entirely
sure I will be able to attend the conference this year, so
perhaps someone else might be willing to step in and give
it this year?

Note that my tutorial is geared for beginners. So there is
still plenty of opportunity for someone else to submit a
tutorial for more advanced users!

Cheers!
Ben Root

On Thu, Mar 12, 2015 at 6:46 PM, Nelle Varoquaux
mailto:[email protected]>> wrote:

Hi everyone,

Is someone submitting a tutorial on matplotlib? The
call for tutorial is open, and I think it would be
nice to have one on matplotlib.

Cheers,
N

-- Forwarded message --
From: *SciPy 2015 Organizers*
mailto:[email protected]>>
Date: 11 March 2015 at 01:02
Subject: SciPy 2015 CFP Email 2
To: [email protected]



SciPy 2015 Logo




Tick-Tock, Tick-Tock:
T-Minus 6 Days for Tutorial Submissions

*Due Date: March 16, 2015*

The SciPy experience kicks off with two days of
tutorials


(July 6-7). These sessions provide extremely
affordable access to expert training, and consistently
receive fantastic feedback from participants. We're
looking for submissions on topics from introductory to
advanced - we'll have attendees across the gamut
looking to learn. Plus, you can earn an instructor
stipend to apply towards your conference
participation. Visit the SciPy 2015 website for
details


or submit a proposal here

.


  Submit a Tutorial Proposal Here
  




Talk and Poster Proposals Due April 1st

There's always something new and exciting going on in
the world of Science + Python, this is your chance to
get up and talk about it!

*Visit the SciPy 2015 website


for full detai