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The Stata Journal
Volume 9 Number 4: pp. 621-639

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Speaking Stata: Paired, parallel, or profile plots for changes, correlations, and other comparisons

Nicholas J. Cox
Department of Geography
Durham University
Durham, UK
[email protected]
Abstract.  Paired, parallel, or profile plots showing the values of two variables may be constructed readily using a combination of graph twoway commands. This column explores the principles and practice of such plot-making, considering both wide and long (panel or longitudinal) data structures in which such data may appear. Applications include analysis of change over time or space and indeed any kind of correlation or comparison between variables. Such plots may be extended to show numeric values and associated name information.
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View all articles with these keywords: profile plot, parallel coordinates plot, parallel line plot, pair-link diagram, bumps charts, barometer charts, graphics, panel data, longitudinal data, arrows, twoway

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