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This chapter is from the book

Concept Map

Prior knowledge:

  • a. function and method calls

  • b. subsetting data

  • c. loops

  • d. list comprehension

This chapter:

  • Reshaping data

    • a. unpivot/melt/gather

    • b. pivot/cast/spread

    • c. subsetting

    • d. combining

      1. globbing

      2. concatenation

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