andrejgrah

Generate near table too slow for large dataset?

Discussion created by andrejgrah on Jan 30, 2013
Latest reply on Feb 4, 2013 by drc_
Hi,
I have noticed that "generate near table" is working really (too) slow for large dataset. I have 43 millions of points in a shape file and I want to get 10 closest neigbours for each point within radius (in worst case that means 430 millions of records in near table). Shape file is located on local HDD. Upper limitations are not exceeded. In 24h only 17% of a task was done:( 

arcpy.GenerateNearTable_analysis(shapeFile, shapeFile, outputNearTable, radius, "NO_LOCATION", "NO_ANGLE", "ALL", 10)

It takes only 20s for 100k points.

Any suggestions how to speed up?

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