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On R and RStudio

Peter Dalgaard, Introductory Statistics with R, Second Edition, Springer, New York, NY (ISBN: 978-0387790534)

On visualization

Tukey, Data-Based Graphics: Visual Display in the Decades to Come. in Statist. Sci. link

Gelman et al., Let’s Practice What We Preach: Turning Tables into Graphs. in Statist. Sci. link

Yau, Data Points: Visualization That Means Something. Wiley. [eBook available at http://www.library.pitt.edu/]

Tufte, The visual display of quantitative information. Cheshire. link to excerpt

On ggplot2

Wickham, Hadley. “A layered grammar of graphics.” Journal of Computational and Graphical Statistics 19.1 (2010): 3-28. link