Preliminary Discussion for Exploratory Spatial Data Analysis and the Integration Model with GIS
Xi Wang, Yaochen Qin · Geography and Geo-Information Science · 2006
Exploratory spatial data analysis(ESDA),based on the characteristics of the data themselves,can avoid the misdirection which is brought by the exceptional value.Based on the defining for the principle and conception of exploratory,this article discussed the primary techniques for exploratory spatial data analysis which includes interactive and dynamic spatial data analysis,geosciences visualization and visual spatial distribution,confirmatory spatial data analysis and spatial data mining.Because of the reason that great differences exist between the statistical analysis software and GIS about their data formats,it is difficult for exploratory spatial data analysis to integrate with GIS presently.The most possible integration model is to adopt object linking and OLE technology,so to involve the exploratory data analysis function of the statistical analysis software and the map display and spatial analysis function of GIS and to develop necessarily.At the end,the trend of exploratory spatial data analysis is prospected.