Choropleth map & Dasymetric map - Unionpedia, the concept map

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Difference between Choropleth map and Dasymetric map

Choropleth map vs. Dasymetric map

A choropleth map is a type of statistical thematic map that uses pseudocolor, meaning color corresponding with an aggregate summary of a geographic characteristic within spatial enumeration units, such as population density or per-capita income. A dasymetric map is a type of thematic map that uses areal symbols to visualize a geographic field by refining a choropleth map with ancillary information about the distribution of the variable.

Contour line

A contour line (also isoline, isopleth, isoquant or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value.

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Dot distribution map

A dot distribution map (or a dot density map or simply a dot map) is a type of thematic map that uses a point symbol to visualize the geographic distribution of a large number of related phenomena.

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Ecological fallacy

An ecological fallacy (also ecological inference fallacy or population fallacy) is a formal fallacy in the interpretation of statistical data that occurs when inferences about the nature of individuals are deduced from inferences about the group to which those individuals belong.

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Field (geography)

In the context of spatial analysis, geographic information systems, and geographic information science, a field is a property that fills space, and varies over space, such as temperature or density.

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Geographic information system

A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data.

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John Kirtland Wright

John Kirtland Wright (1891–1969) was an American geographer, notable for his cartography, geosophy, and study of the history of geographical thought.

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Map symbol

A map symbol or cartographic symbol is a graphical device used to visually represent a real-world feature on a map, working in the same fashion as other forms of symbols.

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Modifiable areal unit problem

The modifiable areal unit problem (MAUP) is a source of statistical bias that can significantly impact the results of statistical hypothesis tests.

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Population density

Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area.

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Spatial analysis

Spatial analysis is any of the formal techniques which studies entities using their topological, geometric, or geographic properties.

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Thematic map

A thematic map is a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area.

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Waldo R. Tobler

Waldo Rudolph Tobler (November 16, 1930 – February 20, 2018) was an American-Swiss geographer and cartographer.

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