Linked Questions

10
votes
7answers
5k views

Dividing polygons into *n* number of groups of equal counts with ArcPy?

One of my tasks for work is to divide parcels into groups. These groups will be used by agents to talk to property owners. The goal is to make the agent's job easy by grouping parcels that are near ...
2
votes
1answer
2k views

Graph/Network building and analysis of linked polygons in ArcGIS for Desktop?

This is more of a follow-up question to Dividing polygons into *n* number of groups of equal counts with ArcPy? and Grouping village points based on distance and population size using ArcGIS Desktop?, ...
4
votes
1answer
274 views

Clustering Technique?

I have the following 9 clusters (each colour represent the appropriate cluster): I am looking for a clustering algorithm (if any) that would achieve "realistic" results. The data represents ...
0
votes
1answer
445 views

r - Create grid (or polygons) over shapefile that vary in area but equal in number of points encompassed

I am using R's various spatial analysis features. I have data from a number of sampling locations throughout Africa, distributed unevenly. For several reasons, it is of interest to break our Africa ...
5
votes
1answer
660 views

Dividing polyline layer in clusters with specific requirements in ArcGIS for Desktop?

For my work in ArcGIS 10.2 for Desktop I need to divide line layers into clusters/groups. Currently I am doing this manually, but I like to automate this. The line layers can consist of 50 up to 2500 ...
3
votes
1answer
168 views

Finding geographic median in ArcGIS Desktop?

Is it possible to split the total population in 501 polygons, each polygon with a different number of inhabitants into two North/South sub-areas with roughly the same number of inhabitants in each sub-...
0
votes
1answer
168 views

Merging adjacent polygons to one which sum of attribute values of adjacent ones is between 1000 and 2000?

I have a huge number of polygons that contain attribute field that represent number of offices inside each polygon. Now I want to merge all adjacent polygons which count (sum) of offices values is ...
0
votes
0answers
267 views

Split Point Layer into even sized cluster

I want to cluster many points (around 1.000) into even sized groups (13 points each group). There is no attribute defining that groups, it should be grouped based on spatial distance. I tried to work ...
1
vote
0answers
183 views

Cluster points into evenly numbered groups

I need to take x number of points and equally/spatially divide them into groups. Meaning that if I had 40 points like in the image below and wanted to have 4 groups of points. Each group should have ...
1
vote
1answer
105 views

Clustering by property

I have a number of points with a "time" property. I need a procedure that, given a total time, results in a number of clusters in which the sum of the time property do not exceed the given total time. ...
0
votes
2answers
69 views

Evenly assigning attributes to layer of points using ArcGIS Desktop?

I have a layer of point features at fixed locations. One of the fields in my attribute table has two possible values (lets say they are "a" and "b"). How can I modify this attribute as needed in order ...
3
votes
0answers
56 views

Clustering based on eqaul populations

I have a map of a city that is divided into 65 sectors (building lots in purple, sector boundaries in red): In my shapefile of building lots, I have an attribute that is the total population within ...
2
votes
0answers
46 views

Tool to help us re-district?

I work for a mid-sized school district and we unfortunately have to close one of our school buildings. That means that the neighborhoods who've been sending their children to the school that is ...
1
vote
0answers
26 views

Dividing polygons into equal sub-regions based on population using QGIS? [duplicate]

I'm using demographic data in California by census tract, and I'd like to be able to group those census tracts into 4 regions with an equal population in each region. Any recommendations for how to do ...
0
votes
0answers
21 views

Create shortest route for a set number of units

I am running a field survey and would like to create routes for the surveyors. I have the building lots and road network for a particular city (road in red, lots in blue, with a Google Maps basemap): ...