Any Python modules with an equivalent to ArcGIS Pro "Average Nearest Neighbour Distance" tool?

Question

ArcGIS Pro offers the Average Nearest Neighbour Distance geoprocessing tool to measure the distance between each feature centroid and its nearest neighbour's centroid location. It then averages all these nearest neighbour distances and provides a report of: Observed Mean Distance, Expected Mean Distance, Nearest Neighbour Index, z-score, and p-value

For more information on how the tool works see below: https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-statistics/h-how-average-nearest-neighbor-distance-spatial-st.htm

I'm curious as to whether any Python modules offer similar functionality? I'd like to be able to incorporate some kind of nearest neighbour analysis in future scripts - in particular, observed mean distance and expected mean distance.

It's a script tool, why not right click on and choose edit, then you can see exactly how ESRI are doing it and what python modules they are using. — Hornbydd, Apr 29 '22 at 11:58
Look at the answer of Taras in Looking for Python equivalent of QGIS "Nearest Neighbour analysis" tool — gene, Apr 29 '22 at 15:30

score 0 · Answer 1 · answered Apr 29 '22 at 13:02

You can try with networkx. First the data should be converted into networkx graph nodes and edges using python code. https://networkx.org/documentation/stable/tutorial.html Then use the inbuilt methods of networkx to find distance, nearest neighbour etc. https://networkx.org/documentation/networkx-1.9/reference/generated/networkx.algorithms.assortativity.k_nearest_neighbors.html

score -1 · Answer 2 · answered Apr 29 '22 at 10:16

-1

Yes, there is a tool like this. Have a look at https://docs.qgis.org/3.22/en/docs/user_manual/processing_algs/qgis/vectoranalysis.html#qgisnearestneighbouranalysis

answered Apr 29 '22 at 10:16

Mazu_R

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Thanks but I'd like a python way of doing it. In order to execute the above tool I'd have to run qgis.core and that is not ideal in my case – fuzzy_raster9873 Apr 29 '22 at 10:17
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Then add this information (not being able to use qgis.core) to your question – Mazu_R May 03 '22 at 10:17

Any Python modules with an equivalent to ArcGIS Pro "Average Nearest Neighbour Distance" tool?

2 Answers2