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R Data Analysis Cookbook - Second Edition by Kuntal Ganguly

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Work Smarter, Not Harder - Efficient and Elegant R Code

In this chapter, we will cover recipes for doing the following without explicit iteration:

  • Exploiting vectorized operations
  • Processing entire rows or columns using the apply function
  • Applying a function to all elements of a collection with lapply and sapply
  • Applying functions to subsets of a vector
  • Using the split-apply-combine strategy with plyr
  • Slicing, dicing, and combining data with data tables

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