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Track: New Technology and Technology Integration
Shuming Bao
MathSoft, Inc.
1700 Westlake Ave N Suite 500
Seattle, WA 98109
Telephone: 206-283-8802 x296
Fax: 206-283-6310
E-mail: bao@statsci.com
Doug Martin
Integrating S-PLUS with ArcView in Spatial Data Analysis
Defining Issue: This paper provides an introduction to the analysis of spatial data with ArcView and S-PLUS. GIS Solution: S-PLUS, an object-oriented software product of MathSoft, is a powerful data analysis package with over 1,650 functions such as Moran I statistics and spatial regression models. S-PLUS provides tools developed for the exploratory data analysis and modeling of three broad classes of spatial data: geostatistical data, point patterns, and lattice data, which can be used to analyze data arising in technical areas such as environmental, mining and petroleum engineering, natural resources, geography, epidemiology, demography and others where data is sampled spatially. With an interface developed for ArcView and S-PLUS, the statistical analytical functions and graphic capabilities in S-PLUS are integrated with spatial visual techniques in ArcView. Methodology: The conversation between S-PLUS and ArcView is established through an S+API linkage. The user can launch or close an S-PLUS session
from ArcView. Users can export selected records and variables from ArcView to an S-PLUS object. Users can also access an S-PLUS object directly from ArcView such as plotting a map with residual or fitted value using data from S-PLUS in ArcView, adding a table from an S-PLUS object, or adding an event theme from an S-PLUS object. Other auxiliary functions provided for spatial data analysis include selecting spatial data records in ArcView, selecting spatial data variables, grouping observations into different categories, and constructing spatial weight matrices according to the distance and neighbor criteria. Software: The application was written using Avenue.
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