Chapter 3 – Filtering and Summarizing Data

The loaded R package versions (in the order mentioned in the chapter):

  • sqldf 0.4-10 (CRAN)
  • hflights 0.1 (CRAN)
  • dplyr 0.4.1 (CRAN)
  • data.table 1.9.4. (CRAN)
  • plyr 1.8.2 (CRAN)
  • microbenchmark 1.4-2 (CRAN)

Further reading:

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