topic Re: Combine Feature Classes while combining data of combined features in ArcGIS Pro Questions

Combine Feature Classes while combining data of combined features

SM2 — Tue, 16 Aug 2022 12:59:32 GMT

Hello! I have created a hot street map of gun crime in the city. There are certain street blocks that are separate features - 300 and 400 block with 15 and 24 incidents respectively, for example. I would like to combine neighboring street blocks (there are a number of streets with 2 street blocks that emerge as hot streets) with data. The merge tool does not work - it will not combine the total incident count it will only allow you to choose which metric to keep. Is there a way to do this?

Thank you!!

Re: Combine Feature Classes while combining data of combined features

JohannesLindner — Tue, 16 Aug 2022 13:22:28 GMT

If you want to do this for just a few features, you can do it manually.

Activate the Merge tool
Select the features you want to merge
Click on the feature whose attributes you want to keep
You can edit these attributes
Click Merge

If you have to do it more often, you'll probably have to write a short Python script.

Re: Combine Feature Classes while combining data of combined features

SM2 — Tue, 16 Aug 2022 13:40:54 GMT

That does not combine the incident count related to each feature. I must have a total count with the incidents from both street blocks

Re: Combine Feature Classes while combining data of combined features

SM2 — Tue, 16 Aug 2022 16:08:02 GMT

The dissolve tool works better. I was able to dissolve all features based on street name (so all blocks combined). However, I am looking to select which blocks to combine manually. I do not see how this can be done if anyone knows?

Re: Combine Feature Classes while combining data of combined features

SM2 — Tue, 16 Aug 2022 16:52:14 GMT

Okay I figured it out if anyone else ever has this question: add a field (we will call it "BlocksCombined") to the attribute table with a common value between each feature you want to combine. So if you only want 300 and 400 blocks rather than 300 + 400 + 500, place the same value in "BlocksCombined" and dissolve based on "BlocksCombined".