Accession Number : ADP007182

Title :   Dynamic Graphics: Linked Points, Lines and Regions with Applications to Spatial Data Modelling,

Corporate Author : TRINITY COLL DUBLIN (IRELAND)

Personal Author(s) : Haslett, John ; Bradley, Ronan

Report Date : 1992

Pagination or Media Count : 5

Abstract : The convergence of Geographical Information Systems (GIS) and Statistical Dynamic Graphics has led to the development of a number of new concepts in spatial data analysis. This paper discusses how such ideas may be extended in the context of spatial modelling. The software environment we use - REGARD - incorporates the GIS ideas of point, line and region 'layers of data' pertaining to an area under study. The spatial variation here is modelled by a variogram. The model may be used to generate new statistical views of the data, which may be regarded as diagnostics. Aspects of the model may be decomposed spatially in the linked-views environment. Many such aspects are naturally viewed as being defined point-wise. Aspects which refer to data pairwise can naturally be associated with line-objects. Many analyses are oriented to defining regions of anomalous behaviour. The paper will illustrate these intertwined ideas.

Descriptors :   *INFORMATION CENTERS, CONVERGENCE, DYNAMICS, ENVIRONMENTS, GRAPHICS, MODELS, NUMBERS, PAPER, REGIONS, VARIATIONS.

Subject Categories : Information Science

Distribution Statement : APPROVED FOR PUBLIC RELEASE