[Qgis-developer] graph and plots improvements?

[Matthias Kuhn]

On 03/18/2015 02:03 PM, Matthias Kuhn wrote:
> Hi
>
> On 03/18/2015 01:39 PM, Régis Haubourg wrote:
>> Hi Mattheo, 
>> I totally agree with that feature request and am volunteer to work on that
>> if needed.
>>
>> I have been doing experiments with processing scripts using library such as
>> pandas (relying on matplotlib), seaborn and plot.ly.  
>> See "Summarize_numeric_columns_using_Pandas" script in  my github
>> https://github.com/aeag/QGIS-Processing/tree/master/scripts ) for a first
>> example. We also have unpublished scripts making graphs if needed.
>>
>> I expect to have a student working on that this year: exploring what libs
>> are worth being shipped with qgis, and developping some processing tools
>> using that. 
>>
>>
>> The tries I have made up to now seems to conclude that the "must have" lib
>> is Pandas. Many QGIS processing tools working on non geographic data are
>> limited when datasets grow up. Pandas let it be extrmely fast and concise,
>> in a syntax very close from "R". That may be worth shipping it.. 
>> It weights nothing in comparison of Numpy (already required).. 
> Pandas is really great. I used it a lot for my master thesis and was
> excited, especially in combination with ipython notebook it's great to
> process, combine and visualize data.
> Just a minior sidenote: it makes use of numpy IIRC, so it's not an
> alternative to it but something on top of it.
Oh, that's probably what you wanted to say with already required :)
>
> All the best
> Matthias
>
>> Once pandas shipped, we could probably make great improvements to Statist
>> and its friends. 
>>
>> Cheers
>> Régis
>>
>>
>>
>> --
>> View this message in context: http://osgeo-org.1560.x6.nabble.com/graph-and-plots-improvements-tp5194130p5194168.html
>> Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
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>
>
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