geopandas bug ?

[Peter Otten]

Xristos Xristoou wrote:

> Τη Σάββατο, 14 Ιανουαρίου 2017 - 3:43:10 μ.μ. UTC+2, ο χρήστης Peter Otten
> έγραψε:
>> Xristos Xristoou wrote:
>> 
>> > i want  to create a simple spatial joing using geopandas but i thing so
>> > geopandas has bug ?
>> 
>> Have you tried the examples on <http://geopandas.org/mergingdata.html>?
>> Do they work? If yes, inspect your data, does it have the same format?

Looks like you chose to ignore the hard part.
 
>> > geopandas code :
>> > 
>> > from geopandas import gpd
>> > import geopandas
>> > points = geopandas.GeoDataFrame.from_file('points.shp') # or geojson
>> > etc polys = geopandas.GeoDataFrame.from_file('polygons.shp')
>> > pointInPoly = gpd.sjoin(points, polys, how='left',op='within')
>> > 
>> > error :
>> > 
>> > Traceback (most recent call last):
>> >   File "/home/sarantis/testshapely/sumpointsinsidepolygon/testgeo.py",
>> >   line 7, in <module>
>> >     pointInPoly = gpd.sjoin(points, polys, how='left',op='within')
>> >   File
>> >   "/usr/local/lib/python2.7/dist-packages/geopandas/tools/sjoin.py",
>> >   line 57, in sjoin
>> >     r_idx = np.concatenate(idxmatch.values)
>> > ValueError: need at least one array to concatenate

>> > any idea why ?
>> 
>> My crystal ball says that either points or polys is empty ;)
> 
> is not empty and yes i have two shapefiles from qgis.

Can I download those files somewhere?

> what is the error ?

No idea. Without those files I cannot run your code.