Univariate choropleth maps are used to show a single variable. The following map is showing the percentage of individuals that are living in poverty, by county.
Sunday, April 24, 2011
Univariate Choropleth Map
Univariate choropleth maps are used to show a single variable. The following map is showing the percentage of individuals that are living in poverty, by county.
Bivariate Choropleth Map
A bivariate map displays two variables on the same map. A bivariate map may consist of line features, polygon features, or point features. The map above is an bivariate map depicting the median house values in counties all over Ohio.
Classed Choropleth Map
In a classed choropleth map, you would use the bar to determine the height and shading or color intensity for each class. These maps generally include a frequency histogram, a frequency curve, and shading or coloring. The following classed map is depicting the divorce rate in the United States in 1990.
Unclassed Choropleth Map
http://www.esri.com/news/arcuser/1003/files/choropleth.pdf
In an unclassed choropleth map that uses a frequency curve that varies the shading or color intensity from the lowest to the highest specified value. The following map is an example of an unclassed choropleth map showing the divorce rate in the United States in 1990.
Saturday, April 23, 2011
Bilateral Graph
A bilateral graph is a graph which shows the correlation between two or more different sets of variables. The following is considered a bilateral graph because is is using two variables, energy use per capital and energy use per dollar GDP to determine energy use throughout the United States.
Lorenz Curve
A lorenz curve is a graph formed by showing the concentration of ownership of certain economic quantities.
Index Value Plot
The following index value has been plotted using a line graph. This particular plot is showing the average stream flow over a two months span.
Subscribe to:
Posts (Atom)