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A radial tree, or radial map, is a method of displaying a tree structure (e.g., a tree data structure) in a way that expands outwards, radially. It is one of many ways to visually display a tree, [ 2 ] [ 3 ] with examples dating back to the early 20th century. [ 4 ]
The index of dissimilarity is a demographic measure of the evenness with which two groups are distributed across component geographic areas that make up a larger area. A group is evenly distributed when each geographic unit has the same percentage of group members as the total population.
Blue Marble's first software product, the Geographic Calculator, [2] was developed in 1992 and released in 1993. The Geographic Calculator is a coordinate conversion library with a database of coordinate mathematical objects including projections, coordinate systems, datums, ellipsoids, linear and angular units. The tool is primarily used to ...
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Demographic statistics are measures of the characteristics of, or changes to, a population. Records of births, deaths, marriages, immigration and emigration and a regular census of population provide information that is key to making sound decisions about national policy. [1] [2] A useful summary of such data is the population pyramid. It ...
LibreOffice Calc is the spreadsheet component of the LibreOffice software package. [5] [6]After forking from OpenOffice.org in 2010, LibreOffice Calc underwent a massive re-work of external reference handling to fix many defects in formula calculations involving external references, and to boost data caching performance, especially when referencing large data ranges.
Using the definition of a 30-mile radius from Binghamton, the population as of the 2010 census is 317,331. [5] The Greater Binghamton name was adopted in the early 21st century to better identify the region with its most well-known city in efforts of marketing and external promotion. [citation needed]
In March 2013, CACI launched the latest version of Acorn, although the necessary data from the 2011 census was not available for the whole of the UK. The current version of Acorn does not rely on census data, [1] but uses the new data environment created by government policies on Open data and the availability of a number of brand new private sector datasets.