What Is a Choropleth Map?
Choropleth map is a hierarchical statistical map. Within several small division units (administrative divisions or other division units) in the entire mapping area, they are classified according to the quantity (relative) indicators of the data in each division, and the corresponding color levels or different dense halo lines are used to reflect the phenomenon of each region Differences in the degree of concentration or level of development.
Choropleth
discuss
- Chinese name
- Hierarchical chart
- Foreign name
- Choropleth
- Function
- Reflect the phenomenon covering the entire area, etc.
- The Way to express
- Corresponding color level or different dense halo lines
- Choropleth map is a hierarchical statistical map. Within several small division units (administrative divisions or other division units) in the entire mapping area, they are classified according to the quantity (relative) indicators of the data in each division, and the corresponding color levels or different dense halo lines are used to reflect the phenomenon of each region Differences in the degree of concentration or level of development.
- The hierarchical statistical map method can reflect the phenomenon covering the entire area (such as landform cutting density), the phenomenon of point distribution (such as the density of residential areas), or the phenomenon of linear distribution (such as the density of rivers or road networks), but it is more Most of them reflect the phenomenon of being planar but scattered, such as reflecting population density, the ratio of the area planted to a certain crop, and per capita income. This method is also called the color level statistical chart method because it is commonly used for color level representation. [1]
- 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.