1. 학습
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  2. 강의
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  3. Object-Oriented Programming with S3 and R6 in R
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연습 문제

The Final Countdown

What are good uses of a finalize() method for your R6 class? Choose all the options that apply.

  1. Closing connections to a database.
  2. Removing all objects in the global environment.
  3. Reverting settings to global options() (docs) or graphics par() (docs) parameters.
  4. Forcing a garbage collection.

지침

50 XP

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