[GRASS-dev] pysal file I/O

[Paulo van Breugel]

On 23-12-16 23:49, Blumentrath, Stefan wrote:
> Depends what you are planing to do in more detail. But maybe the pygrass Vector or VectorTopo module could be of help...
> https://grass.osgeo.org/grass70/manuals/libpython/pygrass_vector.html

I am looking to use the Moran I  and related statistics available in 
pysal in a grass script to look at point patterns, and possibly write a 
small addon for it (there used to be an grass addon to compute moran I, 
would be nice to have it again). Pysal expects as import a shapefile, 
csv or a few other formats. So I can export a grass vector layer to 
e.g., shapefile, and read that in Pysal and run my analysis. However, I 
thought perhaps there is a more direct way to write a grass vector layer 
to pysal format that people know of. If not, I'll use the 
grass-shapefile-pysal route.

>
> Cheers
> Stefan
> ________________________________________
> Von: grass-dev [grass-dev-bounces at lists.osgeo.org] im Auftrag von Paulo van Breugel [p.vanbreugel at gmail.com]
> Gesendet: Freitag, 23. Dezember 2016 22:34
> An: Helmut Kudrnovsky; grass-dev at lists.osgeo.org
> Betreff: Re: [GRASS-dev] pysal file I/O
>
> On 23 December 2016 3:26:58 pm Helmut Kudrnovsky <hellik at web.de> wrote:
>
>> pvanbosgeo wrote
>>> I am trying to write a script using pysal for point pattern analysis. From
>>> their manual, "PySAL contains a new file input-output API that should be
>>> used for all file IO operations" (
>>> pysal.readthedocs.io/en/latest/users/tutorials/fileio.html).
>>>
>>> Does anybody know or has suggestions how to get a grass vector layer ready
>>> for further analysis with pysal within a grass script using this I/O api?
>>>
>>> Paulo
>>>
>>> _______________________________________________
>>> grass-dev mailing list
>>> grass-dev at .osgeo
>>> http://lists.osgeo.org/mailman/listinfo/grass-dev
>> In mentioned doc, there are e.g. Shapefile or csv listed as exchange format?
>>
>> AFAIU  the I/O api is able to read these listed exchange formats.
>>
>>
> Yes, but I was wondering if it would be possible without first converting / exporting to another format.
>
>> -----
>> best regards
>> Helmut
>> --
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