GIS Dictionary

[statistics] An association between data or variables that change or occur together. For example, a positive correlation exists between housing […]

[data models] A buffer drawn around a line.

[spatial analysis] A form of spatial analysis usually applied to environmental and land-use data in order to find the best

1 [data analysis] A function of time, distance, or any other factor that incurs difficulty or an outlay of resources.

[spatial analysis] A raster dataset that identifies the cost of traveling through each cell in the raster. A cost raster

[ESRI software] The calculation of the least cumulative cost from each cell to specified source locations over a cost raster.

[ESRI software] An ArcGIS Spatial Analyst function that identifies the nearest source from each cell in a cost-weighted distance grid.

[ESRI software] An ArcGIS Spatial Analyst function that provides a road map from the cost weighted distance grid, identifying the

[ESRI software] An ArcGIS Spatial Analyst function that uses a cost grid to assign a valuethe least accumulative cost of

[software] Acronym for commercial off-the-shelf. Commercially available software or systems that are ready to use and which do not require

[federal government] The primary legal subdivision of all U.S. states except Alaska and Louisiana. The U.S. Census Bureau uses counties