Best proximity tool

AvaFarouche

Hi all,

Can you help me understand which is the best tool to use for a certain query - if there is one that matches my task?

I have a large point layer, w/~7,000 points. I want to figure out how many of these points are w/in .25 mile of each other.

So far, it seems like Summarize Nearby is the best option. I did a test using the subject layer as both the Input Features and the Input Summary Features. It basically creates a buffer of .25 miles around each point, and then creates a Count of Points field in the attribute table that tells me how many points are w/in that buffer. So, if there's more than 1 point in that field, I know that there is another point w/in the layer that is w/in .25 miles.

Is that what you would do? If not, what other tool would you use? I started out w/Group by Proximity, but that just left me a little confused. It created 8 groups, based on differing proximities, but it doesn't tell me how those groups are defined, or how far away the points are from each other in each group. I wasn't able to find anything really helpful about that tool online, or any training that addresses it specifically.

Thanks!!

BobBooth1

Summarize Nearby looks like the right tool for the job to me. Do the results look like what you're expecting?

You could also create a model to iteratively select features, select the features near them, get the count of features, copy that to a variable, and calculate that value into the selected feature's attribute table.  This would be fun, and a nice way to teach the concepts involved in the process, but more work for you, and probably a lot slower than using the core ArcGIS Pro tool.