Dynamic Graphics: Linked Points, Lines and Regions with Applications to Spatial Data Modelling,
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1992
- Accession Number
- ADP007182
Entities
People
- John Haslett
- Ronan Bradley
Organizations
- Trinity College Dublin