[GRASS-user] r.neighborhoodmatrix error message

[Michele Zurlo]

Hi I'm Michele and this is my first e-mail in this mailing list and I hope to find a little help :-)
I'm working to classify some UAV images and I would like to follow the method proposed by Grippa et al. 2016(http://proceedings.utwente.nl/367/1/Grippa-An%20Open-Source%20Semi-Automated%20Processing%20Chain%20For%20Urban%20OBIA%20Classification-28.pdf) working with i.segment.uspo(https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html).
So I downloaded and installed the OSGEO Live 9.5 and from GRASS shell I installed i.segment.uspo(https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html) and the required r.neighborhoodmatrix(https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html).
Everything went right but when I try to use i.segment.uspo(https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html) I get an error message because there is something wrong with r.neighborhoodmatrix(https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html). 
This is the error message retrieved trying to use r.neighborhoodmatrix(https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html):

#############################
Traceback (most recent call last):
 File
"/home/user/.grass7/addons/scripts/r.neighborhoodmatrix",
line 137, in <module>
 main()
 File
"/home/user/.grass7/addons/scripts/r.neighborhoodmatrix",
line 123, in main
 unique_neighbors_sorted =
gscript.natural_sort(unique_neighbors)
AttributeError: 'module' object has no attribute
'natural_sort'
#############################

I tried to re-install the module but I retrieved the same message.
Someone can help me?

Thank you

Michele


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