Advances in Data Analysis and Classification

, Volume 2, Issue 2, pp 163–176 | Cite as

Cluster analysis of census data using the symbolic data approach

  • Antonio GiustiEmail author
  • Laura Grassini
Regular Article


The aim of this paper is to investigate the economic specialization of the Italian local labor systems (sets of contiguous municipalities with a high degree of self-containment of daily commuter travel) by using the Symbolic Data approach, on the basis of data derived from the Census of Industrial and Service Activities. Specifically, the economic structure of a local labor system (LLS) is described by an interval-type variable, a special symbolic data type that allows for the fact that all municipalities within the same LLS do not have the same economic structure.


Symbolic data analysis Local labor systems Interval variables 

Mathematics Subject Classification (2000)

62H30 62P20 


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Department of StatisticsUniversity of FlorenceFirenzeItaly

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