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Issue No.03 - May-June (2012 vol.32)
pp: 6-9
Marcin Kozak , University of Information Technology and Management in Rzeszow
A visit from Superman shows why data visualization should come before data analysis. The Web extra is a dataset that comprises 100 observations of the quantitative variables y and x plus the qualitative variable group. When analyzed correctly, this dataset exhibits an interesting pattern.
Data analysis, data visualization, linear-regression models, statistical analysis, applied statistics, David Farnsworth, Francis Anscombe, datasets, computer graphics
Marcin Kozak, "Watch Out for Superman: First Visualize, Then Analyze", IEEE Computer Graphics and Applications, vol.32, no. 3, pp. 6-9, May-June 2012, doi:10.1109/MCG.2012.46
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4. M. Kozak, “Basic Principles of Graphing Data,” Scientia Agricola, vol. 67, no. 4, 2010, pp. 483–494; www.scielo.brscielo.php?pid=S0103-90162010000400017&script=sci_arttext .
5. D.L. Farnsworth, “Playing with Residuals,” Teaching Statistics, vol. 31, no. 3, 2009, pp. 81–84.
6. F.J. Anscombe, “Graphs in Statistical Analysis,” The Am. Statistician, vol. 27, no. 1, 1973, pp. 17–21; anscombe1973.pdf.
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