Friday, August 8, 2008
Bilateral Graph
Bivariate Chloropleth Map
Given a set of geographic features, it maps two variables on a single map by combining two different sets of graphic symbols. the term "bivariate maps" specifically refers to bivariate choropleth maps that display two variables using graduated color symbols. Here we see a bivariate map showing population stats from France. http://images.google.com/imgres?imgurl=http://go.owu.edu/~jbkrygie/krygier_html/geog_353/geog_353_lo/geog_353_lo08_gr/choro_1836.jpg&imgrefurl=http://mavance2000.blogspot.com/2008/07/bivariate-choropleth-map.html&h=472&w=360&sz=79&hl=en&start=11&tbnid=6TEgPKlY89GShM:&tbnh=129&tbnw=98&prev=/images%3Fq%3DUnclassed%2Bchoropleth%2Bmaps%26gbv%3D2%26ndsp%3D21%26hl%3Den%26sa%3DN
Saturday, August 2, 2008
Digital Line Graphs
Digital Line Graphs (DLGs) are digital vector representations of cartographic information derived from USGS maps. The advantage to using DLGs in a GIS setting is that the vector features can be rendered at any scale, such that zooming in and out on the map does not change the quality of the topographic data representation.
Box plots
Histogram
Parallel Coordinate System
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