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pysal / spaghetti

SPAtial GrapHs: nETworks, Topology, & Inference
http://pysal.org/spaghetti/
BSD 3-Clause "New" or "Revised" License
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Preserving point count when snapping clsutered spatial units? #743

Open adhamenaya opened 11 months ago

adhamenaya commented 11 months ago

I have a large dataset with 300,000 observations representing points located at various locations on a network. To improve efficiency, I grouped or clustered these points into about 300 spatial units then I used network.snapobservations to snap these new observations to the network.

Now, I want to analyze the spatial patterns of these new spatial units using the network.Moran function. However, I still want to consider the original count of points (300,000) when performing the analysis.

Is there a way to achieve this, i.e., snap the new spatial units to the network while preserving the information about the original 300,000 points, so I can use this information in the networkMoran function?

jGaboardi commented 11 months ago

Hi, @adhamenaya. Unfortunately, there is no way to perform this. All observations should be taking into consideration at one time.

adhamenaya commented 11 months ago

@jGaboardi thank you for your reply. Any recommendations to optimize the use of the network.snapobservations for such large datasets?

jGaboardi commented 10 months ago

@adhamenaya Sorry for not getting back to you sooner. Within spaghetti, I don't have any recommendations. However, @knaaptime Might have some insight on if this might be possible with a PySAL adjacent project: geosnap?