Questions tagged [apportion]

to allocate portions of an attribute value to the resulting pieces of a split operation

1
vote
0answers
60 views

Non-area based apportionment methods

I'm quite new to GIS data, and I currently have an issue where I have data on a specific variable coded in one set of geographic units and I need to convert it to another set of geographic units. ...
0
votes
0answers
41 views

Aggregating Individual District Assignments to Census Block

Working on a solution that may work but figured I'd ask the community to see if there's a smarter way to get this task done. I have a voter registration file with district assignments for each voter. ...
1
vote
0answers
16 views

Apportioning two layers using mapbox studio classic

I am using Mapbox Studio Classic to take two shapefiles--one with census tract geometries and the other with my own custom defined geometries. I want to apportion the two geometries so that I can get ...
0
votes
1answer
333 views

Using spatial join in ArcGIS for Desktop?

I have two spatial layers of about the same (not exactly same) spatial extent. Layer#1 has about twice the number of polygons than layer#2 (in thousands). I am trying to calculate values for Field#X ...
1
vote
1answer
593 views

Ratio policy for Intersect in ArcGIS Online?

I have two polygon layers in ArcGIS Online (for organizations) stored as Feature Layers; one is population block, another is the AOI polygon. They are overlapping and I want to find out what portion ...
1
vote
1answer
494 views

How to aggregate values of different statistical areas that are overlapping?

Let's say I have one polygon layer counties with the polygons of administrative borders and another layer postal codes with the polygons of postal code areas. I have some statistical values per ...
2
votes
1answer
2k views

Using Zonal Statistics As Table for overlapping polygons in ArcPy?

I'm using ArcGIS 10.2 for Desktop and would like to calculate the population within a specific distance from bus stops. My input layers are: census block (polygon) with population undissolved bus ...
2
votes
1answer
390 views

Disaggregating vector layer splits

I'm fairly new to GIS, but I've got the basics down. I'm utilizing QGIS and Python to calculate election statistics by legislative and congressional districts. I'm trying to aggregate precinct level ...
3
votes
1answer
12k views

calculate the population inside a buffer with census data

I have population data matched with polygons and a set of points that I have drawn buffers around. Assuming that the population within each geographical area, i.e. the polygons, is evenly distributed, ...
7
votes
1answer
3k views

Calculate population within radius

I have population data matched with polygons and a set of points that I have drawn buffers around. Assuming that the population within each geographical area, i.e. the polygons, is evenly distributed, ...
2
votes
1answer
3k views

Apportioning Neighborhood Information to Census Tracts using ArcGIS Desktop?

I have a shapefile of census tracts and another shapefile of "neighborhoods" with values that I need to have joined to the census tracts. I know I need to apportion the area of the neighborhood ...