GIS Dictionary

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crop marks

[printing] Marks that indicate the edge of the page of a finished, printed map. Cropmarks are used as a reference […]

cross correlation

[spatial statistics use for geostatistics] Statistical correlation between spatial random variables of different types, attributes, names, and so on, where

cross covariance

[statistics] The statistical tendency of variables of different types, attributes, names, and so on, to vary in ways that are

cross tabulation

1 [data analysis] In a GIS, comparing attributes in different coverages or map layers according to location. 2 [statistics] A

cross validation

[statistics] A procedure for testing the quality of a predicted data distribution. In cross validation, a piece of data whose

cross variogram

[spatial statistics use for geostatistics] A function of the distance and direction separating two locations, used to quantify cross correlation.

cross-reference database

[ESRI software] A database containing tables with information defining the mapping between a data source schema and an output geodatabase

cross-tile indexing

[ESRI software] A technique for indexing features that cross tile boundaries in a map library by storing them as one

CSS

[non-ESRI software] Acronym for Cascading Style Sheets. A standard for defining the layout or presentation of an HTML or XML

cubic convolution

[mathematics] A technique for resampling raster data in which the average of the nearest 16 cells is used to calculate

cull

[ESRI software] In ArcScene and ArcGlobe, to selectively choose not to draw one side of an areal feature.

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