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Advanced R: Data Programming and the Cloud by Joshua F. Wiley, Matt Wiley

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© Matt Wiley and Joshua F. Wiley 2016

Matt Wiley and Joshua F. Wiley, Advanced R, 10.1007/978-1-4842-2077-1_8

8. Data Munging with data.table

Matt Wiley and Joshua F. Wiley1

(1)Elkhart Group Ltd. & Victoria College, Columbia City, Indiana, USA

We already introduced the data.table package (Dowle, Srinivasan, Short, and Lianoglou, 2015). The data.table package is the heart of this chapter, covering the basics of accessing, editing, and manipulating data under the broad term data management. Although not glamorous, data management is a critical first step to data visualization or analysis. Furthermore, the majority of time on a particular analysis project often comes from data management. For example, running a linear model in R takes one line of code, ...

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