Present Development of Statistical Graphics: Creation of Clients and Methods for Visual Representation
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概要
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Statistical graphics are now being used not only for descriptive and exploratory purposes but also for the whole process of data analysis. This includes model building and fitting and even statistical inference and decision. Needless to say, practical application is imperative in studying and developing statistical graphics. In this development process we must keep in mind that consummating the "ad hoc" nature of graphics is more important that aiming at universality. In this paper, we discuss statistical graphics from a viewpoint which attaches importance to their development, improvement, and application rather than placing a stress on their research. We review graphical techniques for data investigation, ordering of multivariate data, discriminant analysis and survival analysis. Statistical graphics enables an intuitive understanding of large amounts of qualitative and quantitative information in statistical data analysis. At the same time, statistical graphics are subject to various erroneous interpretations if used in a non-objective manner. Therefore, for an objective statistical analysis based on graphical representation of data, it is important to clarify how graphics affect the various aspects of human intuition and to measure these effects, using some numerical statistics. In this paper we interpret these statistics and consider how graphics and some nonparametric statistics are related. Further progress of statistical graphics depends on their methodological development and the enlargement of support of clients in many fields. In conclusion, we will briefly treat some recent trends in statistical graphics software, directions for the study and development of statistical graphics, and ways in which to create markets in these new areas.
- 日本統計学会の論文
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