Choropleth Maps, Count Statistics and Intensity Measures
Choropleth Maps are maps that shade geographical areas according to statiscics tabulated for each area. These are some of the most common statistical maps.
Choropleth maps: In this method, the values are rendered for areas ("choros"- area, "plethos" - value in Greek). Values are calculated for area and expressed as stepped surface, showing a series of discrete values.
Choropleth Map
A map that shows statistics related to geographical areas by shading the areas based on statistical values.
Chromatic ...
Choropleth maps maps, in which each spatial unit is filled with a uniform color or pattern. They are appropriate for data that have been scaled or normalized.
Choropleth map of water use.
Geographers use many methods to create thematic maps, but five techniques are especially noted.
Choropleth Map
A descriptive map that indicates, through some form of shading or pattern, the magnitude of a particular phenomenon within a defined geographical area.
choropleth map
A thematic map in which areas are distinctly colored or shaded to represent classed values of a particular phenomenon. Referenced by: Choropleth map; Thematic map; Bivariate map; Dasymetric map.
chroma ...
a choropleth map uses reporting zones such as counties or census tracts to show data such as average incomes, percent female, or rates of mortality ...
See Also: choropleth map
[map design] A map designed to convey information about a single topic or theme, such as population density or geology.
Choropleth A choropleth map portrays a statistical surface with area symbols (colours), which represent the collection regions, inferring uniformity within these units e.g. counties, provinces, forest polygons.
An example of interactive manipulation is visual comparison designed for the so called choropleth maps representing values of a numeric attribute into color shades in which objects are painted: the greater is a value, the darker is the color.
choropleth map See: map, choropleth clinometric map: See: map, slope color separation Process of preparing a separate drawing, engraving, or negative for each color required in the printing production of a map or chart.
choropleth map p. 13 a thematic mapping technique that displays a quantitative attribute using ordinal classes applied as uniform symbolism over a whole areal feature.
 See also: Geographic, Mapping, Information, Area, GIS
  
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