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.

learn more… | top users | synonyms

2
votes
1answer
33 views

Automating Choropleth map creation from table in QGIS?

I am trying to create soil nutrient maps from an excel table. My table has the location with multiple nutrients for each location (Nitrogen, Potassium, pH etc). I would like to create a choropleth map ...
1
vote
1answer
69 views

Zooming into State

I am using R LeaftLet package to create a interactive choropleth of the US Map. Now my question I want both in one map itself but make zip code visible as I zoom in a state or double click on a ...
1
vote
1answer
284 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 ...
0
votes
1answer
15 views

Create Choropleth Style Map in CartoDB programmatically

I am trying to create a choropleth map for a school project I am working on. Based off user input, I will create a csv file that I will then upload to CartoDB using their Import API. By setting the ...
0
votes
1answer
25 views

QGIS Grid Union Issues

I am trying to create a choropleth map of ice concentration over Lake Erie. I have data for all the lakes (I can clip it all at the end), which are in a point shape file. I have laid a grid over the ...
0
votes
1answer
78 views

Choropleth map turns one color when filtered, sql error

My data is generating a choropleth map perfectly but when I try to filter (both in the filter tab and by writing my own SQL) it turns all one color and tells me I have an SQL error. This happens even ...
5
votes
0answers
85 views

rMaps choropleth with custom json

With R I want to make an animated choropleth map with the rMaps package and a custom map. I tried to follow the example of Diego Valle described here and to use the custom map info for Datamaps. ...
2
votes
0answers
88 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 = ...
2
votes
0answers
168 views

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 ...
1
vote
0answers
18 views

geoserver sld color gone in zoom out

I badly need help... I have a layer served from geoserver, this layer is in polygon.. and in every polygon the color varies according to a number. so it is like a choropleth map. now my problem is ...
1
vote
0answers
46 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 ...
1
vote
0answers
368 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 ...
1
vote
0answers
115 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 ...
0
votes
0answers
20 views

R: why are missing choro.legend() items when displayed in zoom()? RStudio

I wish to create map of Oregon, using choropleth(). Using locator() trick I've revealed coordinates for my choro.legend() position. It seems correctly placed in my plotting window, however my legend ...
0
votes
0answers
18 views

How to Simultaneously Map Mean and Margin of Error

This is an aesthetics/methods question for mapping the mean and margin of error (for 95% confidence interval) together in a single dataframe in ArcMap 10.2.2. Input: A polygon shapefile with ...
0
votes
0answers
74 views

Raising height of a certain part of choropleth

I have a working choropleth map which shows number of patients in a certain coloured area. I want to raise the height of the specific area according to the patient count. The variable height is equal ...
0
votes
0answers
107 views

QGIS Small multiples / animate across columns

I want to turn each column of a shapefile into choropleth. I have over 100 columns, so rather than manually classifying each column and exporting an image, I was wondering if there is a way to ...