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ModelSheet was founded by two MIT graduates, Richard Petti and Howard Cannon, who earlier worked together at Symbolics and later in the division spun out as Macsyma. [1] [non-primary source needed] After the Macsyma episode in the 1980s and the 1990s, the pair took separate career paths, with Petti at The MathWorks, and Cannon at Groton NeoChem and SciQuest, and then merged their companies to ...
Spatial descriptive statistics is the intersection of spatial statistics and descriptive statistics; these methods are used for a variety of purposes in geography, particularly in quantitative data analyses involving Geographic Information Systems (GIS).
The key is the location and/or extent in space-time. Any variable that can be located spatially, and increasingly also temporally, can be referenced using a GIS. Locations or extents in Earth space–time may be recorded as dates/times of occurrence, and x, y, and z coordinates representing, longitude, latitude, and elevation, respectively.
It is somewhat like BUGS, but with a different language for expressing models and a different sampler for sampling from their posteriors; Statistical Lab – R-based and focusing on educational purposes; TOPCAT (software) – interactive graphical analysis and manipulation package for astronomers that understands FITS, VOTable and CDF formats.
For example, the vector data model represents geography as collections of points, lines, and polygons, and the raster data model represent geography as cell matrices that store numeric values. [1] Data models are implemented throughout the GIS ecosystem, including the software tools for data management and spatial analysis, data stored in a ...
This page was last edited on 16 February 2024, at 23:01 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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The use of descriptive and summary statistics has an extensive history and, indeed, the simple tabulation of populations and of economic data was the first way the topic of statistics appeared. More recently, a collection of summarisation techniques has been formulated under the heading of exploratory data analysis : an example of such a ...