Accuracy of thematic maps/implications of choropleth symbolization.

A. M. Maceachren

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The focus of the study presented is on data representation accuracy considering the specific case of choropleth maps. It is demonstrated that three factors, enumeration unit size, enumeration unit compactness, and variability of the distributions mapped are significant in determining enumeration unit aggregate value accuracy and, therefore, map accuracy. Based on experimental results, it is suggested that potential accuracy of choropleth maps could be predicted through measurement of these characteristics. A second experiment is used to demonstrate the applicability of this method to predicting overall choropleth map accuracy as well as the geographic distribution of any error present in the map. -from Author

Original languageEnglish (US)
Pages (from-to)38-58
Number of pages21
Issue number1
StatePublished - 1985

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes


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