Questions tagged [choropleth]

A choropleth map is a thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical variable being displayed on the map, such as population density or per-capita income.

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R - how to create a pre-determined number of identical square polygons to use for a choropleth map?

I am trying to plot crime data density (again!) over a city map, say of NY. As a well known problem there are plenty of examples on this (http://www.obscureanalytics.com/2012/12/07/visualizing-...
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Making animated choropleth with ArcGIS Pro

I want to make an animation that shows the changes in state shape and state population every ten years. My state data is all in one large feature class. I have a polygon for each state every ten years,...
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724 views

Different Leaflet fillcolors for different layers

I have a leaflet map set up with two layers and I want them to use different colorization functions to color the choropleth shapes. My shapes are set up in layers like this: var povertyLayer = L....
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ArcMap 10.6 Choropleth Banding

We have ArcMap 10.6 at work, and would like create choropleth maps to visualize the the change in profit (%) that adjusting different business variables would have. **Note that the actual change in ...
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Mapbox choropleth map without the in-between colors?

I am new to Mapbox and love the simplicity of creating choropleth maps with stops, and while I prefer the way Mapbox colors each polygon relative to where the value falls between stops by blending the ...
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172 views

Making a choropleth in D3 by intersecting a MultiPolygon and a Point GeoJSON

I am trying to generate a choropleth map showing crimes per neighborhoods: I have a layer showing the neighborhood boundaries of the city of San Francisco, and point data showing incidences of crime ...
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394 views

How to fill the color in choropleth map in absolute value?

Problem I am planning to publish an article about 'how many votes are counted in each region' every one hour after the June election in Korea is over at 6 p.m. So at 7 p.m., at 8 p.m., at 9 p.m.,...
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259 views

Labeling Counties in R Choroplethr

I am trying to label counties using choroplethr. Some posts on the topic exist but do not detail sufficiently how this is done. My reproducible example/code follows. How would I change my code so ...
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142 views

Automating QGIS Choropleth Maps Using PyQgis

I have maps (shapefiles - vector layers) of several states' school districts, appended to a federal dataset containing the same variables for each state's districts (in the attribute table). I want to ...
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65 views

Deciding on classification method and number of classes for mean temperature

I'm trying to decide on the classification method: natural breaks, equal interval, quantiles, or manual and the number of classes for a map showing the mean temperature of places in Canada. The ...
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400 views

Custom cuts using R and `choropleth` in package `GISTools`

I am plotting some data on a shapefile using R and choropleth in packageGISTools I would like to modify my code below in order to assign custom breaks. Using the World Borders Dataset, download from: ...
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404 views

QGIS choropleth map

In QGIS, when I change from single symbol to a graduated style, the map "disappears." When I change it back to single symbol, the map "reappears." The issue doesn't appear to be the scale, since it ...
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853 views

Trying to Create a Global Choropleth Population Density Map then add Biodiversity Level

I am trying, quite unsuccessfully, to create a global choropleth population density map for a specific 120 countries, using ggplot2. Once I have created this choropleth map, I want to add number of ...
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270 views

Which bins should be used for demographic data for a choropleth map?

I'm currently working on a project which produces a choropleth map similar to a map like this: http://dl.dropboxusercontent.com/u/54512470/Telefondaten_VIZ/index.html That map has 2x5 classifications ...
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Python - Issue to create choropleth map based on GeoJSON file: AttributeError

I'm trying to build a choropleth map, I cannot figure out why I get this error: AttributeError: 'NoneType' object has no attribute 'get' Here is my code: station_nb is a dataframe with values ...
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117 views

Merge shapefile data within the same spatialpolygonsdataframe in R, when not all data have the merge column populated?

I have a 156Mb shapefile of New Zealand polygons down to the individual suburb level. There are 7,369 polygons. Each polygon has a unique ID (1...7369) in an ID column. There is a Suburb column ...
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Plotting GeoJSON or a shapefile as a choropleth interactive map

I need some help to complete the following code to display choropleth interactive map by clicking on a button. # Plotting the shapefile observeEvent(input$shape, { p1=leafletProxy("gridmap") %>%...
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Making 3D choropleth map in QGIS 3 with native tools?

This is similar to this question Is it possible to draw a 3D Choropleth Map in ArcGIS?, but I just wanted to know if the same could be done with the new release of QGIS 3 without the use of the ...
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937 views

Is there a way to have a choropleth map in Excel reading data from a sheet?

Is it possible to have a solution similar to ESRI maps for office in which I want basically a geojson file or any file for that matters to render a choropleth map based on data in a sheet? Tried ...
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394 views

Seeking free tool to make choropleth map with administrative borders?

I have a numeric table for some administrative division like county, state, province, oblast. Is there a free tool that I can supply with my table and get a choropleth map?