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Providing scientific visualization for spatial data analysis: Criteria and an assessment of SAGE

Author

Listed:
  • Robert Haining

    (Department of Geography (e-mail: r.haining@sheffieldac.uk))

  • Stephen Wise

    (Department of Geography (e-mail: r.haining@sheffieldac.uk))

  • Paola Signoretta

    (Sheffield Centre for Geographic Information and Spatial Analysis; The University of Sheffield, Sheffield S10 2TN, UK)

Abstract

. A consistent theme in recent work on developing exploratory spatial data analysis (ESDA) has been the importance attached to visualization techniques, particularly following the pioneering development of packages such as SPIDER and REGARD (Haslett et al. 1990). The focus on visual techniques is often justified in two ways: (a) the power of modern graphical interfaces means that graphics is no longer a way of simply presenting results in the form of maps or graphs, but a tool for the extraction of information from data; (b) graphical, exploratory methods are felt to be more intuitive for non-specialists to use than methods of numerical spatial statistics enabling wider participation in the process of getting data insights. However, little work has been done to decide which visualization tools might be needed to support ESDA, or how they can be most effectively implemented. This paper briefly reviews a theoretical framework that has been suggested for addressing these issues, which comprises two elements: firstly a data model, based on the distinction between rough and smooth properties of spatial data, that defines what an analyst is looking for in data (Haining et al. 1998) and secondly a theoretical model for assessing the quality of visualisation tools (Cleveland 1994). The emphasis of this paper is the use of the theoretical framework to structure an assessment of SAGE, a software system that has been written for the spatial statistical analysis (including both exploratory and confirmatory data analysis) of area based data linked to a GIS. The aim of the assessment is to identify the desirable features of the system (that might be employed in other systems) whilst also highlighting what the additional requirements are thereby contributing to the development of systems for ESDA that contain good quality scientific visualization tools for exploratory spatial data analysis.

Suggested Citation

  • Robert Haining & Stephen Wise & Paola Signoretta, 2000. "Providing scientific visualization for spatial data analysis: Criteria and an assessment of SAGE," Journal of Geographical Systems, Springer, vol. 2(2), pages 121-140, July.
    • Handle: RePEc:kap:jgeosy:v:2:y:2000:i:2:d:10.1007_pl00011450
    DOI: 10.1007/PL00011450
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    Cited by:

    1. Ángeles Sánchez & Jorge Chica-Olmo & Juan de Dios Jiménez-Aguilera, 2018. "A Space–Time Study for Mapping Quality of Life in Andalusia During the Crisis," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 135(2), pages 699-728, January.
    2. María Cristina Rodríguez Rangel & Marcelino Sánchez Rivero, 2020. "Spatial Imbalance Between Tourist Supply and Demand: The Identification of Spatial Clusters in Extremadura, Spain," Sustainability, MDPI, vol. 12(4), pages 1-20, February.
    3. Raymond J. G. M. Florax & Arno J. Van der Vlist, 2003. "Spatial Econometric Data Analysis: Moving Beyond Traditional Models," International Regional Science Review, , vol. 26(3), pages 223-243, July.

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