topic Re: Calculating the distance between multiple points in ArcGIS Pro Questions

Calculating the distance between multiple points

660005678Student_Number — Sun, 12 Apr 2020 09:26:27 GMT

Hi,

I have a point shapefile feature class which has over 500,000 points (locations of houses) and another point shapefile feature class which has about 30 points (locations of shops). Is it possible to be able to calculate the distance between each house and the closest shop? Ideally i would quite like a file which then contains all the distances between the house and the nearest shop which can then be shown as a histogram so i can analyse the distribution of distances from each house to the nearest shop?

Is there an easy way to do this or is there too many points for this to be possible?

Thanks for your help,

Katy

Re: Calculating the distance between multiple points

DanPatterson_Retired — Sun, 12 Apr 2020 09:42:37 GMT

If you want road distance, then you would require the network analyst extension.

500,000 x 30 would probably cause issues, you would be better off clustering your destinations into groups , there is little point having a separate route for all houses on a city block, for instance,

Re: Calculating the distance between multiple points

660005678Student_Number — Mon, 13 Apr 2020 13:09:05 GMT

Thank you so much for getting back to me!

I have attempted clustering, particularly trying to use the patially Constrained Multivariate Clustering, but that didnt work as all i have is the location of the point with no other information and i couldnt get it to cluster on location basis. I also tried density based clustering and that didnt work either? Do you by any chance have any other suggestions?

Thanks so much

Katy

Re: Calculating the distance between multiple points

DanPatterson_Retired — Mon, 13 Apr 2020 15:38:25 GMT

a picture would help.

still the question of road distance vs straight-line

are the coordinates in meters?, feet? or degrees?

an example of what could be done for straight-line

Aggregate Points—ArcGIS Pro | Documentation
- use some distance threshold to group the points
- get the polygon clusters
- take the centroid of the clusters

You will have grouped the points into areas, from which you will use the centroid of the polygon to represent a 'location' for further analysis.

One of several, using existing tools,