The patterns that would result if the hypothesis were true are compared against the actual migration patterns to determine the level of correlation. OzGIS Mapping System OzGIS is a software system for displaying geographically referenced data, such as Census data or environment data, as maps and diagrams on screens, printers and plotters on an IBM PC compatible. The system can be used to analyze socio-economic data produced by censuses and surveys and to support management decisions associated with for example Government planning, marketing, sales, site and personnel location, advertising. Maps of polygons, lines and points can be displayed according to one or two attributes along with various overlays. About 130 menus provide extensive options for interactively designing the layout and appearance of the map, and for attribute handling, classification, interrogation and saving maps.
Maps can be output on plotters, printers and various file types.
Applications such as territory definition and retail site catchment analysis are supported. This is the ftp site for Idrisi support files. This site has been known to briefly contain some interesting-looking files on the subjects of GIS, MOSS, mapping and other code fragments and subroutines along the same lines.